I Might be pregnant I don't know

Me and my partner have been having sex mostly everyday within these past 2 1/2 weeks and sometimes he uses a  condom and sometimes he doesn't and the times he doesn't he pulls out. But he has a little bit of pre cum when he puts it in. And I guess I'm suppose to be starting my period soon or I was already suppose to do it. I've had headaches stomach pain cramps and been moody. I took a pregnancy test a week ago and came out negative but I'm stressed out because I also have a bladder infection now. But i still think I might be pregnant