Patient's question:
A few days ago, my husband and I had sex without any form of contraception. Afterward, I was worried about getting pregnant and took a post-coital contraceptive pill. On the third day after taking the pill, I started bleeding continuously. What could be the reason for bleeding after taking the post-coital contraceptive pill?Doctor's answer:
Vaginal bleeding occurring again in the first half of the menstrual cycle may be due to insufficient estrogen. The solution is to take 1-2 tablets of ethinyl estradiol, a breastfeeding aid, daily while taking birth control pills. Continue this until they have taken all 22 birth control pills, then stop taking both medications together. After estrogen levels are increased, it will force the endometrium to regrow, thereby having a therapeutic effect. If vaginal bleeding occurs again in the second half of the menstrual cycle, it is often due to insufficient progesterone. In this case, 1 additional birth control pill should be taken daily, resulting in a total of 2 pills per day, until the scheduled stop date.