I was on MonoNessa for four months and then got switched to TriNessa. I had unprotected sex Thursday and started my new pack of TriNessa on Thursday night. I then missed a pill on Friday, but took two on Saturday. I then took a pill everyday, until I missed one on Wednesday. I then took two on Thursday and I haven't missed once since. Is there any way I could be pregnant? My doctor told me that I should take two in one day, if I ever missed a pill. But, I also had other people saying that I should of taken plan B on Friday or Saturday. I also heard that since I took four months of birth control perfectly then I should of been protected