Unprotected Sex About A Week Ago Right After I Got

unprotected sex about a week ago right after i got off my period. Taking acid reflux medication having abdominal pains, gas, growling stomach, soft stool. Had light brown disharge two days ago but that was the only day. Today i squeezed my nipple and a little bit of clear liquid came out. Jusy finished doing high knees and jumping jacks with out a bra. Am i pregnant?