Need advicee!!

Hey girls! So I had sex April 25 which was my first fertile day (9% probability) and it was the only time i had sex during my fertile window. A couple of days later i started feeling with light cramps, and i thought it might be ovulation cramps. But they keep going... I noticed my body would get warm sometimes for no reason and sweating a lot or feeling hot. When I wake up I have nauseas and light-medium headaches and i have a lot of intestinal gas plus some abdominal pain that makes it uncomfortable sometimes and feel kind of bloated. Idk what could be wrong; and idk if it’s too early for me to test? My period should come around May 14 but since I am irregular sometimes idk what should I do. Anyone else felt this and was pregnant?