Help (TMI)

Eva
I put up a post earlier and I will be testing but I wanted to know if anyone else knows what this is or has had it. As I said in the other post, me and my SO had intercourse day before period. The discharge was way different then normal and the act itself felt different (SO agrees with me). Afterwards my cervix area was in a lot of pain, almost like that sharp feeling you have when you have a bad infection which I don't. The bleeding started the day after ranging from light to medium flow and dark red, brown and pink. Normally I just shrug it off and plan for the next month but I got a nagging feeling to test (I haven't yet though). Anyways, I still have that sharp pain in my cervix area and it has been on and off through the past 3 days, which is odd because unlike usual I haven't had any cramps. What could the pain be and should I go to a Dr about it or could it just be a result of the potential pregnancy or AF?