How to detect a false period: am I pregnant?

Have you ever heard a woman say she didn’t know she was pregnant because she kept having her period? The false period also has a medical name, it is called implantation bleeding and it is somewhat more common than we think, especially in the first weeks of pregnancy.

This does not mean that it happens to all women, but suddenly many find that their period is different. Shorter, with another color although accompanied by the same symptoms or even some more: nausea, vomiting…

In women who are looking for pregnancy and have obtained a positive test, it is usually a cause of fright and a quick visit to the doctor. It turns out that we are pregnant and we bleed, what is happening? However, in the case of women who do not seek pregnancy, sometimes it can pass as a practically normal rule and lead to error, thinking that we are not pregnant when we are. Then what do we do? How do we detect the false period, that is, this bleeding that can be confused with menstruation? How can we differentiate it from a normal one?

Signs that warn of a false rule (and a possible pregnancy)

First of all, you should know that there is not a great similarity between the normal rule and the false rule, and that special attention must be paid to the differences that may exist. These are some of the signs that indicate that you are facing a false period:

No ovulation

Bleeding is caused by causes other than flaking of the endometrium due to lack of pregnancy and sometimes it does usually present the same symptoms, such as abdominal pain, breast tenderness or tiredness.

Date: when should your period come down?

The most common cause of this false period is implantation bleeding, which usually occurs 3 or 4 days before the period. The date on which it occurs is another thing that can lead to confusion. Although it is true that, if you have a long and regular menstrual cycle, you could sense that it has come a few days earlier. If your cycles are short, you can mistake it for a normal period.


One of the things that can help us differentiate it is the color. This bleeding is produced by a rupture of vessels caused by the arrival of the embryo in the uterus, which is expelled in the form of bleeding. The color will not be the same as your normal ruler, but rather darker brownish, and sparser.

Duration of bleeding

Another thing that can help us recognize the false period is the duration of your bleeding. It usually lasts a single day, but sometimes it lasts up to three (surely much less than your normal menstruation), although the abundance of this may vary to a greater or lesser extent, depending on each woman.


In addition, the bleeding is usually more liquid (because of the tear that we talked about before) and does not present blood clots, something that menstruation usually does.


One of the biggest differences that can make us consider whether we are talking about periods or metrorrhagia are the new symptoms that we begin to experience. For example, this time, in addition to the characteristics that we have just told you about, you also feel dizzy, nauseated, very tired and heavy in the legs, constantly wanting to pee or breast enlargement and pain in them, especially at night. Very common symptoms in pregnancy.

Vaginal or cervical injuries

  • Other causes for which this false period usually occurs may be vaginal or cervical injuries or a threatened abortion. In these two cases, the bleeding is usually more abundant and resembles menstrual bleeding.
  • Our recommendation is the following. If you had confirmed or suspected that you may be pregnant and you have suddenly seen bleeding that you did not expect, it is recommended that you go to the doctor to stay calm and know that everything is going well. It is important that whenever there is bleeding during pregnancy, you go to the gynecologist to perform a complete examination and rule out possible complications.
  • On the other hand, if you have noticed changes in your period, they coincide with these characteristics and you have had unprotected intercourse, take a pregnancy test or go to the doctor to tell him what happened and to confirm or deny that you may be pregnant.

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