over heated, woke up with cramps, Are these pregnancy signs?

Hi, i'm 17 and i've been having sex with my boyfriend for about 7 1/2 months. i was on Alesse birth control until about february (4 months ago). my periods have always been irregular except for when i was on birth control but since discontinueing i have had a period 20 days after the last and 27 days after the last. today is day 27 again after my last and i usually am around 22 days. today i have felt sick, over heated, woke up with small cramps and i alwaaays have to pee. my boyfriend and i are still unsure if were pregnant but do my symptoms sound like period symptoms?

*also, roughly 5 days ago i noticed my boobs were quite sore and the nipples are sensitive to touch. there has also been a white/clear discharge when i squeeze them hard enough.