Embarazada sintomas regla: Síntomas del embarazo: Qué ocurre primero

Embarazada sintomas regla: Síntomas del embarazo: Qué ocurre primero

First Signs Of Pregnancy: Before You Miss Your Period

You’ve heard about the morning sickness, frequent urination, and other early signs of pregnancy. But what are the very first signs of pregnancy that might show up when you haven’t even missed your period yet?

Early pregnancy symptoms vary widely from woman to woman, and even in the same women across different pregnancies. In this article, we’ll explore some of the very first symptoms that may show up in the first few weeks of pregnancy.

It can be tempting to analyze your body for signs of pregnancy, but it’s important to keep in mind that the only certain sign of pregnancy is a positive pregnancy test. You may associate nausea, bloating, or fatigue with pregnancy, but the truth is, these symptoms can just as easily occur in women who are not pregnant.

How do you know for certain whether a given symptom is a sign of pregnancy? This is impossible, because most early pregnancy symptoms are caused by the hormone progesterone, which is elevated in the days before your period is due whether or not you are pregnant.

However, you can rule out the possibility of a symptom being caused by pregnancy. If you experience a symptom earlier than 9 days after ovulation (or 4 – 5 days before your period is due), it’s highly unlikely to be related to pregnancy—even if you do end up pregnant that cycle. The reason for this is that implantation does not occur until 9 days after ovulation. And until implantation occurs, you are not pregnant.

1. Late period

For most women, the first sign of pregnancy is a late period. But even a late period does not guarantee that you are pregnant. If your period is late, you should take a pregnancy test to confirm it. If your period is late but you have a negative pregnancy test, this means that you probably ovulated late this month.

2. Spotting

A 1999 study published in the New England Journal of Medicine found that around nine percent of women experienced light bleeding or spotting during early pregnancy. Much of the time, there is no explanation for this bleeding.

You may have heard about something called implantation bleeding. This is the idea that when the fertilized egg burrows into the uterine lining, it may cause light spotting or bleeding around the time that your period is due. But the authors of the 1999 study found that when bleeding occurred, it was rarely on the day of implantation. They “found no support for the hypothesis that implantation can produce vaginal bleeding.”

While spotting can occur during early pregnancy, it’s not really a sign of pregnancy. That’s because spotting is more likely to occur in cycles that don’t end in pregnancy compared to cycles that do.

Related: can you be pregnant and still get a period?

3. Cramping

Despite what you may have heard about implantation cramps, while cramping may occur during early pregnancy, it’s also not considered a sign of pregnancy. This is because cramping also frequently occurs when someone is not pregnant.

There’s a physiological reason for this: the hormone progesterone, which can cause bloating and cramping. In the week before your period is due, progesterone levels are high. During pregnancy, progesterone levels increase even further.

Since premenstrual cramping and early pregnancy cramping are often caused by the very same hormone—progesterone—this means that cramping is not a reliable indicator of pregnancy.

4. Sensitive breasts

Hormone changes during your menstrual cycle can cause changes in breast tissue that makes your breasts feel tender. Some women swear that breast changes were their first pregnancy symptom. Common terms that women use to describe their symptoms include:

  • Breasts feeling heavy or full
  • Sore or sensitive nipples
  • Tender breasts
  • Increased breast size

The truth is that sore nipples and breast tenderness can happen during both conceptive and non-conceptive cycles. There aren’t scientific studies investigating whether breast pain in the days before your period due is more likely to occur in pregnant women.  

5. Funny taste in your mouth

For some women, one strange early sign of pregnancy is a lingering metallic or bitter taste. Called dysgeusia, increased estrogen levels are the culprit.

While not all pregnant women experience this symptom, a 2002 study found that 93 percent of pregnant women experienced some form of altered taste during the first trimester.

6. Fatigue

Exhaustion is one of the most common symptoms of pregnancy, affecting up to 90 percent of pregnant women during the first trimester. This fatigue is caused by increased levels of the hormone progesterone, and the sleepiness can hit some women even before their period is due.

7. Elevated resting heart rate

Resting heart rate increases over the course of your menstrual cycle: it’s lowest during menstruation, increases as you approach ovulation, and increases further after ovulation. If you are not pregnant, resting heart rate falls during your next menstrual cycle.

If you are pregnant, resting heart rate remains elevated throughout your pregnancy.   Throughout pregnancy, resting heart rate increases by about 25%, and the sharpest rise in heart rate occurs during the beginning of the first trimester.

8. Elevated basal body temperature

Basal body temperature is the lowest temperature your body reaches during a 24-hour period. When you’re not pregnant, your basal body temperature increases by about 0.5 degrees Fahrenheit after ovulation, falling again just before or during your next period.

The reason for this is that metabolic rate increases after ovulation and falls during your period. With a higher metabolic rate, your body generates more heat.

During pregnancy, basal body temperature does not fall as it typically would, but rather remains elevated through the first trimester.

You may not feel much warmer, since the increase in temperature is so slight. But if you use a sensitive thermometer to track your temperature, the increase should be apparent.

8. Nausea

While morning sickness doesn’t typically start until around 6 weeks gestation (that’s 2 weeks after your missed period), some women start feeling nauseous much earlier—even before your period is due.

While nausea is very unpleasant, there is a silver lining: women who experience nausea during the first trimester have about one third the chance of miscarrying compared to those who don’t experience any nausea.

9. Excess saliva

A common complaint during the first trimester is excessive saliva. This symptom usually goes along with nausea, and there’s a good reason for it: experts believe that the saliva can help protect your mouth, teeth, and throat from stomach acid—which has a corrosive effect.

10. Increased sense of smell

If you suddenly can’t walk past a garbage can without holding your nose, and find you can no longer sit next to the coworker eating an egg salad sandwich … you might be pregnant.

Despite strong anecdotal evidence for heightened sense of smell, there’s a dearth of research looking into how common this phenomenon is or what might cause it.

11. Frequent urination

One of the earliest signs of pregnancy for many women, you may notice an increased need to urinate as early as 4 weeks of gestation (around the time your period is due). Rising levels of hCG cause increased blood flow to the kidneys, which in turn increases your urge to urinate.

Frequently asked questions about the first signs of pregnancy

How early are the first signs of pregnancy?

Studies show that most women begin to feel early pregnancy symptoms between the fifth and sixth weeks of pregnancy, with 89% of women feeling symptoms by the end of the eighth week. (How many weeks pregnant are you? Since pregnancy is counted from the first day of your last period—five weeks pregnant means one week after your missed period). 

Can you be pregnant with no symptoms except a missed period?

Yes. If you think you might be pregnant and you’re worried that you don’t feel any different, remember: most pregnant women don’t experience any symptoms until a full one to two weeks after their missed period.

On the other hand, missing your period doesn’t necessarily mean you’re pregnant. Your period can be delayed because of late ovulation (since ovulation is what determines when your period comes) or an anovulatory cycle (a cycle where you don’t ovulate at all). Stress, illness, and travel can sometimes disrupt your usual ovulation pattern, causing your period to also be delayed.

If your period didn’t come when you expected it to and you are trying to conceive, it’s a good idea to treat yourself as though you are pregnant—until you confirm either way with a pregnancy test. Because if you did conceive, you may not feel the first signs of pregnancy for at least a few more weeks.

Read More:

What’s the Best Pregnancy Test? Common Brands Ranked by Sensitivity

How Many Weeks Pregnant Am I… Really? Here’s the Accurate Answer

False Negative Results when You’re Pregnant: Is the Hook Effect Real?

By Aarthi Gobinath, PhD |

Tags: early pregnancy, early pregnancy signs, early pregnancy symptoms, trying to conceive, two week wait


View sources

A prospective study of the onset of symptoms of pregnancy.

Fetal Sex-Based Differences in Maternal Hormones, Angiogenic Factors, and Immune Mediators During Pregnancy and the Postpartum Period

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Si tu test de embarazo ha dado positivo y, días más tarde, tienes un sangrado; o si estás buscando quedarte embarazada y sigues manchando, pero menos cantidad que con tu regla habitual; puede que estés teniendo un sangrado de implantación o falsa regla.

Algunas mujeres embarazadas experimentan una ligera pérdida de sangre en las fechas en las que suelen tener la menstruación, lo que provoca nerviosismo, confusión y miedo a un aborto, o también dudas sobre si estás embarazada.

A continuación te vamos a explicar qué es este sangrado y cómo diferenciarlo de la regla para que te quedes más tranquila.

¿Qué es el sangrado de implantación?

Se trata de un ligero sangrado vaginal que tiene lugar unos pocos días después de que el embrión se implante en el útero materno.

A veces, es tan escaso que se llama manchado de implantación. También se le conoce como falsa regla.

¿Siempre hay sangrado de implantación?

No todas las mujeres experimentan el sangrado de implantación. Aproximadamente, se estima que solo ocurre en 3 de cada 10 embarazadas. Así que, ya sea si tienes este sangrado como si no, no te inquietes.

¿Cuánto dura el sangrado de implantación?

La duración del sangrado de implantación depende de cada mujer.

Su duración puede ser de unas pocas horas o prolongarse durante varios días o una semana como un manchado leve e intermitente.

¿Cuándo se produce el sangrado de implantación?

La proceso de la implantación embrionaria comienza el séptimo u octavo día después de la fecundación del óvulo por el espermatozoide, y dura varios días mientras viaja por las trompas uterinas.

El embrión llegará al útero entre los diez y los catorce días después de la concepción y se pegará a la pared, pudiendo romper pequeñas venitas y provocar el sangrado por implantación.

De esa forma, el embrión rompe los capilares superficiales del endometrio para formar otros nuevos que lo unirán y servirán para alimentar al bebé a través de la futura placenta y el cordón umbilical.

Hay que comprender que el embrión debe quedar perfectamente anclado al tejido del endometrio para asegurar el intercambio de nutrientes durante todo el embarazo.

Además, en las primeras semanas de embarazo, el útero está más irrigado para crear vida y puede sangrar con más facilidad.

¿Se puede producir el sangrado de implantación después del retraso?

Dado que el sangrado de implantación se produce en la segunda semana después de la concepción, puede ocurrir cuando ya has experimentando un retraso en la llegada de tu regla. Esto dependerá de la duración de tu ciclo y del momento en el que te hayas quedado embarazada.

¿Cuál es la diferencia entre sangrado de implantación y regla?

Como el sangrado de implantación es una hemorragia vaginal que se produce al final del ciclo menstrual, resulta muy fácil confundirlo con la regla ya que suele aparecer en las mismas fechas.

Sin embargo, el sangrado de implantación tiene diferencias que nos permiten reconocerlo, especialmente por el color y la duración del manchado.

¿De qué color es el sangrado de implantación?

Puede ser rosado, marrón o tirando a rojo oscuro, aunque no suele ser un color tan fuerte como el de la sangre de la menstruación.

¿Cómo es el sangrado de implantación?

La cantidad del sangrado es leve y escasa, y a veces solamente se nota al limpiarse. En cuanto a la densidad, es un flujo algo más ligero que la regla y de textura más fina y diluida.

¿El sangrado de implantación duele?

Aunque no es lo más común, el sangrado de implantación puede llegar a provocar un dolor leve similar al que se produce antes o durante la regla, en forma de molestias en los pechos o cólicos.

Además, suele ir acompañado de otros síntomas del embarazo como náuseas, cansancio, etc.

¿El sangrado de implantación provoca algún riesgo en el embarazo?

No se conoce ninguna evidencia científica que relacione el sangrado de implantación con otros problemas en el embarazo como pueden ser los abortos espontáneos, el embarazo ectópico, etc.

Los abortos se relacionan con sangrados, pero al igual que ocurre con la regla, son sangrados más intensos y suelen llegar con dolores.

¿Qué debo hacer si tengo sangrado de implantación?

No es necesario hacer nada, pero si te quedas más tranquila, acude a tu médico y consulta tu caso particular.

El especialista valorará tus síntomas y te explicará todo lo necesario sobre tu embarazo y los cuidados que debes tener.

👉 Visita nuestra Guía para el primer trimestre de embarazo, donde podrás leer los cuidados que debes tener en las primeras semanas de tu embarazo.

¿Has tenido un sangrado de este tipo? Cuéntanos tu experiencia.

Las mejores vitaminas para tu embarazo

Las futuras mamás necesitan tener su cuerpo a punto para recibir a su bebé.

El cuerpo de la mujer embarazada tiene unas exigencias nutricionales diferentes para conseguir un embarazo sano y un bebé saludable.

Complementa una dieta equilibrada y unos hábitos de vida saludables con la toma de Concevit® , un suplemento alimenticio elaborado con ingredientes de origen natural.

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Contenido revisado por el departamento técnico de Laboratorios Niam. Este artículo es informativo y no sustituye la consulta de un médico o especialista.


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