I've been having occasional nausea spells, sharp pains in my stomach and freinquent popping sensation in my stomach also. 6 months ago I had unprotected intercourse but he didn't ejaculate inside of me and 3 months ago I had protected sex and again he didn't ejaculate inside of me. I've had my periods on time every month. but four months ago I lost my sons father and my aunt with in a week and half between each other and has been under a lot of stress. Could this be pregnancy or something else.