Pregnancy problem

So recently me and my bf had sex an he did end up cumming in me . So this happened last Sunday , so I didn't take any morning pill and I'm not on birth control . I kinda just decided to take it's course because getting pregnant was our goal and now over the week I started to feel early symptoms tender breasts , sore back , fatigue, nauseated etc then on the 12th I was barely spotting and I assumed that was normal . Well yesterday I had bad back cramps and then full on started bleeding but it was more of like clots of blood I freaked because I really thought i was pregnant I started crying my eyes out and I haven't took a test yet because I haven't had the time but I was curious to know is it still possible if I'm pregnant ? Is that normal ? Because i was 99.9% sure I was pregnant but then this happened so idk if it's possible or not if I still am I have never dealt with pregnancy before someone please help :(