Am I pregnant? Or what’s going on ?!

So I’m 16 and had sex for the first time last Saturday (its Friday today), my boyfriend and I did it twice, unprotected, and they weren’t very long. Both times pulling out and then finishing. This is like a week and a half or two weeks after my fertile window time period thing too. Then Wednesday night we did it again, also unprotected (yes we know veryunsafe and we’re aware of that!!) anyway my period was due today, Friday and it hasn’t come. I also noticed that the discharge I was having was super bad like it normally is around the start of my period (which made it easier to have sex obviously) but like yesterday I think it was it kinda stopped? It’s not as wet and I don’t need like a panty liner on like usual (because it normally gets That wet..) soooo I’m super concerned that I may be pregnant?! Just needing some opinions here, my parents would quiet literally murder me if they found out I had sex... can losing your virginity delay your period at all? My friends tell me not to freak out till like a few days after my periods due day because it may just be late but I cant help but freak. SOME ADVICE IS NECESSARY PLEASE!

Edit; I’m not on the pill or anything too so pulling out was the only way “protection”. I’m hoping because it was so close to the start of my period the chance of pregnancy is lower? I’m not in a position where I can talk to my mum and get a pregnancy test or see a doctor too- unless I really need too