I want to be a mommy now

Hi me and my boyfriend have been trying to conceive & I must admit it have not been easy we started last month in May I started my cycle on the 17-21st well on the 21st we had sex & 22nd we had sex & he came in me we started having sex EVERYDAY & every time he came in me I took a test it came out negative:( but My stomach have gotten bigger my back has been aching & me & my boyfriend have been having the worst headaches but my cycle came today it wasn't a regular cycle it was light so today we decided to go to the emergency room & ask for a test and they gave it to me & it came out negative:( idk what else to do I want a baby so bad any suggestions?