Help please

This might be stupid but i want you ladies to help me. My boyfriend and i had sex, after a few weeks i felt cramps and i have been peeing a lot, when i searched this up it said it was a sign of pregnancy. I took a pregnancy test and it came out negative and the other week i took another test and it still came out negative, that week i had gotten my period. But im still peeing a lot and feel kind of bloated, and having cramps again today, my period doesnt start until the end of the month.