Patient's question:
I took the birth control pill on August 3rd and haven't had my period yet. In the meantime, I took metronidazole to treat trichomoniasis. Could this be related?Doctor's answer:
From your description, it cannot be ruled out that pregnancy is possible, because withdrawal before ejaculation does not guarantee that pregnancy will not occur, as a small amount of sperm may be released along with secretions before ejaculation. Emergency contraception pills can only be effective for the most recent sexual encounter and do not provide contraception for sexual activity after taking the medication. In fact, under normal circumstances, practicing any form of contraception can pose certain risks to the pregnant individual. Therefore, the patient should pay attention to their diet. Those using contraception should also take care of themselves, such as ensuring warmth and avoiding cold exposure.