Q: I am on Gianvi, a birth control pill. I had a period starting on Aug. 7th as scheduled, lasted 3 to 4 days. I missed a couple pills the 17th and 18th and then started another period the 19th. I had unprotected sex on the 21st and was wondering what my chances are of becoming pregnant? I have also been on this method of birth control for about 3 years if that makes a difference. A: Thank you for asking question. Gianvi is a birth control pill that contain two hormones, a progesterone and estrogen. The high level of progesterone and estrogen prevent pregnancy by inhibiting the release of egg from the ovary, blocking the cervical opening by a thick mucus plug so that sperms can't enter the uterus and by making the uterine wall un-favorable for the attachment of embryo. Hence This drug helps in preventing the pregnancy at three separate sites. Now your question is that you have missed two of your pills. If you miss two of your pills then take the most recent pill as soon as you
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