Bleeding on day17 of cycle why?

There are a few possible reasons why you might experience bleeding on day 17 of your cycle:

* Implantation bleeding. This is light bleeding or spotting that can occur when a fertilized egg implants in the lining of the uterus. Implantation bleeding typically occurs 6-12 days after ovulation, but it can sometimes happen earlier or later.

* Breakthrough bleeding. This is bleeding that occurs between periods. It is most common in women who are taking hormonal contraception, but it can also occur in women who are not taking contraception. Breakthrough bleeding is often caused by a temporary drop in estrogen levels.

* Ovarian cysts. Ovarian cysts are fluid-filled sacs that can develop on the ovaries. They can sometimes cause bleeding between periods.

* Uterine fibroids. Uterine fibroids are non-cancerous growths that can develop in the uterus. They can sometimes cause bleeding between periods.

* Endometriosis. Endometriosis is a condition in which tissue that lines the uterus grows outside of the uterus. It can sometimes cause bleeding between periods.

* Pregnancy. Bleeding during pregnancy can be a sign of a miscarriage or other pregnancy complication. If you are pregnant and experience bleeding, it is important to see your doctor right away.

If you are concerned about bleeding on day 17 of your cycle, it is important to see your doctor to rule out any underlying medical conditions.