Pregnancy Info HOME

ok so i had s_x about to weeks ago and now i feel werid things going on in my stomach. its hard to explain. it just feels different, like theres something there. so i went to this place to get a pregnancy test and it came back negaitve but im not supposed toget my period till sunday so im not late yet. thelady said it was to early to tell and to come back if i havent started. im sooo scared it was my first time having s_x and we used a condom. i wasnt worried till i starting getting these stomoch pains. do you experience stomach pains this early if your pregnant? what could it be?! im scared please help!