need help about possible pregnancy
my bf and i have been having sex for over a year, andwe just use the pill. i know it's irresponsible, but we both decided that though we'd prefer not to have a kid right now, if we did, we could afford it and take care of it. anyway, i haven't had any pregnancy scares until now.
what i want to know is how possible it is that i could be pregnant if i haven't missed a period and two at home pregnancy tests were negative? i first thought i was about 3 or 4 months ago. i threw up. i NEVER throw up. the last time i threw up was like 5 years ago when my temp. was 105, and i had the flu. i've thrwon up again since then (about a month ago). also, i am gaining weight. my stomach just keeps getting bigger. it wasn't very noticeable until recently, but last night even my bf admitted my stomach had gotten bigger. i haven't been eating any more than usual, and i haven't been eating worse. i've had stomach issues that have not gone away for months, bloating and gas. recently my breasts seemed to have grown. i'm liking foods i used to not like. i don't know if being paranoid has caused me to imagine this or what, but i think i might be pregnant.
i haven't missed a single period, and they've all been regular. i also took 2 tests last week, and they said negative. i don't mean to rant, i'm just nervous, and i want to know how possible it is for me to be pregnant.