Okay, so we had intercourse once and we used plan B, then again we did the same thing and waited 4 or 5 days before getting another plan B. She hasn't had a regular period in a while and she just got off of DEPO shot in early January/Late December. She was spitting yesterday, and below her breast, better yet, her ribs are sore. Could this be side effects of the three plan b pills she has taken, or is it possible for her to be pregnant. If it is possible, how likely?