Ok, me and my gf were having sex on a friday, when switching positions i was inserting my penis and heard the condom break, so i immediately pulled out, i was not close to ejaculating, so then within 4 hours i purchased plan b, it was around day 15-17 of her cycle, she took plan b, 4 hours after the incident, and it is now monday, she is still having sum stomach pain, or cramps, is this normal shuld i be worried?