currently freaking out, am I pregnant???

my period is five days late and I have no idea what to think. I haven’t had sex since December but I was fingered and I don’t know if he had anything on his fingers. I had just given him a blowjob n he was jerking off too...I’m 18, my religious mom is gonna kill me. I’ve been getting cramps and pains in my stomach like I’m about to have my period but nothing ever happens. I’m terrified, what should I do?