Hi im 22 y.o and not using contraseption. so this past 3 weeks i constantly have menstruation. especially when i'm so tired. but its not heavy, its li?

Pregnancy worries?: For fertile women who are having sex... it can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A home urine pregnancy test gives a accurate result. One can test about 3 weeks after sex (3 weeks after when conception might have occurred), 1 week after missing a period, or 1 week after starting a "weird" period.