I am 23 I had sex on jan 21.24 prob 4 or 5 times.. My fiance came in me each time. since then been nasausious and tired and a few days ago i exp very lite brownish pink when i wiped only happen through out that day. what could that tell me. It sorda freaked me out since its been so so long since i even had a period. on top of that i been freakly emotional. could i be pregnant. ?