Should I or?

So I’m currently 35 days late on my period. I got off birth control last month and had unprotected sex throughout the month. Really want a baby but all of my test are negative. Well next week is my fiancé’s birthday and he wants to drink and I of course would with him. My thing is I don’t wanna drink if I’m pregnant. All of my test are saying negative. There’s not even a faint line. So my question is, is it too soon to go to the doctor? I’ve been under a TON of stress. Enough stress to make me have a mental breakdown at work and that never happens. My boobs hurts, got bigger, weird cravings and on day 8 of being late there was light pink blood for literally 6 hours maybe. That’s it. I have cramps here and there nothing horrible. And in the evenings I feel nauseous every now and then. I’m just wondering what I should do? And what doctor would I even go to? The health department? OBGYN? Regular doctor?