I've been on birth control for 3 months now. I haven't missed a pill until recently. A few days ago I drank a little too much and was vomiting for a few hours. So I threw up the pill. (Technically missing it) then took it regularly for two days. Then lost it tonight. So I missed two pills in one week. I would just appreciate any information on this situation. How long until I can have sex again? Does this put me at any sort of risk for previous sex before missing the pill twice?