Hi everyone my name is Kayla, I'm 22 years old. So I've been feeling twitching around my stomach mostly between my belly button and abdomen and above my stomach, my period comes every 48 days but bleeds normally for 7 days. My boyfriend and i had unprotected sex on the 12th and I am suppose to start my period on the 21 but I didn't. I don't know what's going on, I've tested 2 pregnancy tests but they're both negative. I don't know if it's the beginning of pregnancy or if it's just gas.