8 Important menstrual facts for men

Have you ever heard of having bad when a woman's rules do not lead to pregnancy? It's just a myth, because according to Nathaniel DeNicola, MD, obstetrician and gynecologist of Penn Medicine, not all women have regular cycles.

A woman with a short cycle, for example, can immediately ovulate immediately after menstruation. So, when you both have bad on the last day of your period, chances are your sperm will stay around long enough until the eggs are released. Which, of course, can lead to pregnancy.

Besides, if the cycle is irregular, the woman can distinguish the first day of her period of spotting (spotting blood) that usually occurs when a woman ovulates. If you do not want to be a father, use contraceptives whenever you and your partner have bad, even if your partner is menstruating.

4. Women can still "have their menses" and stay pregnant

"It's not impossible to know the rules, when she gets rid of her uterine lining, while having a pregnancy at the same time, "said Dr. DeNicola. "But it's possible to see spots, which look like menstrual blood, during pregnancy."

According to a study conducted in China in 2012, 24% of women reported having bled during their first trimester. This can be due to the planting of a fertilized egg in the uterus, or to hormonal changes badociated with pregnancy.

However, this may also indicate something more serious, such as placenta problems or signs of miscarriage. DeNicola.