Conversation: The conversation between human and AI assistant.
[|Human|] I received a birth control shot about a month ago because I am sexually active and dont want to become pregnant. The doctor had told me that there would hardly be any blood with periods and the cramps would almost be nonexistent. All of yesterday I had horrible cramps, the blood was a bit darker than usual, and there was what looked like a piece of skin with the blood. This has never happened to me before, and I was wondering what it could be.
[|AI|]  Hi. Thanks for asking in Chat Doctor. The main mechanism by which a hormonal injection acts is through suppression of ovulation. An ovulatory cycle are painless and that's why your Chat Doctor.  Generally it takes some time for the hormones to act as they are administered externally, and the body takes some time to get adjusted to this hormonal imbalance. So, they may not be effective in preventing the ovulation in the very first month. If the ovulation has occurred already, then hormone injection will not prevent the fertilization but will certainly prevent the implantation. The tissue you saw could have been the expelled fertilized ovum. Also, heavy bleeding and delayed periods are common in the initial few months. If your period had been a little delayed following the hormone shot, then the tissue could be endometrium which is thickened when there is delayed period. If the bleeding persists and if you pass a lot of clots, then you should seek your treating