Conversation: The conversation between human and AI assistant.
[|Human|] I have a problem I havent had my period since January. I last menstruated in December 2013. I was on the progestin injection then I switched to the levonorgesterl and ethinylestradiol birth control pill. Could this be the cause of two missed periods. I have done 4 home pregnancy tests and they all came out negative.Please help I am worried
[|AI|]  Hi, I had gone through your query and understand your concerns. This is a common problem experienced by women taking birth control pills. Wat you are taking is a combined pill(levonorgesterl and ethinylestradiol) which contain both estrogen and progesterone. It will take 90 days(3 months) to restore your normal ovulation and periods, once you stop the pills. So hopefully you will have ovulation by mid-March and bleeding by last weeks of march. And be warned that this can vary from person to person. So don't do unprotected Sexual intercourse, as you can still become pregnant these days, if sperm reach your uterus. Hope this answers your query. If you have additional questions or follow-up queries then please do not hesitate in writing to us. I will be happy to answer your questions. Wishing you good health.