i really need help... a week ago i had sex with condom and we did it without condom for about 30seconds, but because it wads my first time for the last week i have been worrying about if im pregnant or not. My boyfriend promises me that im not and tells me not to worry. Also i have been having most of the symptoms of being pregnant and i have been having really bad stomach pains which make me fall to the ground? Accept i have not been on my period for about a month and a half.... what could this mean? yesteday i did a cheap pragnancy test and it came out as negative but what should i do?