Implantation bleeding or menstruation: how to differentiate them?

Because it appears when the arrival of the rule is expected, Many women may confuse menstruation with implantation bleeding, a slight loss of blood caused by the nesting of the fertilized egg in the walls of the uterus.

Not all women experience implantation bleeding and in the absence of menstruation, they suspect the possibility of being pregnant, however when bleeding occurs, it can lead to confusion. We explain the differences between menstruation and implantation bleeding so you can identify them.

When unprotected sex is maintained on a woman's fertile days, there is a chance of pregnancy. The ovule released by the woman is fertilized by the sperm of the man giving rise to a zygote that descends through the fallopian tubes into the uterus where it is finally implanted to begin to develop the new being.

Lack of menstruation is one of the most obvious symptoms of pregnancy, but in about one third of women it can occur mild bleeding or spotting on the days when you wait for the rule to arrive, or maybe a little earlier.

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When does implantation occur?

It is impossible to know the exact moment at which the implantation of the fertilized ovum occurs in the uterus, milestone that begins pregnancy, since it can be different in each woman, according to present or not regular cycles.

But we can approach if we take into account that ovulation occurs in the middle of the menstrual cycle and that fertilization can occur on the same day of ovulation and up to two or three days later.

Between six to ten days after the egg is fertilized, around week 4 of pregnancy, the embryonic implantation at the moment when the blast is implanted in the endometrium.

The blast cell, a complex cellular structure composed of approximately 200 cells, begins to produce extensions that will allow it to be implanted in the endometrium (inner wall of the uterus). In some women, this process results in what is known as implantation bleeding, which one or two days later, it will descend into the vagina.

This results in approximately Between ten and fourteen days after you have had sexual intercourse, implantation bleeding occurs, which would coincide in a woman who has regular cycles, with the arrival of the rule.

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How to identify implantation bleeding?

  • Unlike bleeding from menstruation, which is usually deep red, implantation bleeding is usually dark red or brown, or barely pink.

  • Is a mild bleeding that may last a few hours, or one to two days (never more than five). While menstruation welds last three to seven days.

  • The rule may start mild but then the flow increases, which does not happen in implantation bleeding, which it occurs once and it won't go over.

  • When there is pregnancy, implantation bleeding It can usually be accompanied by mild cramps in the lower abdomen. Days later, you will begin to experience the first symptoms of pregnancy that will be confirmed with the pregnancy test.

Pregnancy confirmation

To get out of doubt, the most effective and fastest is to get a pregnancy test, however it may be soon for it. For the result to be reliable, it is important to know when to get tested.

It should be done at least one day late to make sure that the pregnancy hormone (human chorionic gonadotropin) is detected, although certain tests claim to detect it from the first week after conception.

If you suspect you may be pregnant and notice heavy bleeding, severe abdominal pain and cramping you should see a doctor, as it could be related to a problem.