Helppppppp

So I had unprotected sex on New Year’s eve, I’m not on the pill or any other kid of contraceptives (yes I know how dumb I was to do it) he pulled out but like pre cum ah, like I got my period last month but it was lighter than usual and finished a day ir so early, my period this month is late. Not by a lot yet but I’m literally sitting here stressing out so bad like if I’m pregnant my parents would kill me, they’d kill mr if they knew I was having sex as it is like ahh help