My boyfriend and I had sex 7 days before my period came (yesterday we did) this morning I woke up with low cramps and bad gas, any chance im pregnant?

Maybe something else. Can test in 3 weeks, if no period comes. A urine preg. test done correctly gives a reliable result 3 weeks after sex (3 weeks after when conception might have happened) or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon. If a woman has her normal regular period, then she is not pregnant, and a test is not needed.