unprotected sex more than once, not on birth control

Alright, my boyfriend and i had had unprotected a number of times through out the month of august. We had however stopped once started and he had used a condom from there. Unforunately in those times that he was inside me with out protection he had precummed. About three weeks ago or so, we had had sex using a condom and the condom had broke and he had came in the condom, so it had all ended up inside of me. I am now two and a half weeks late for my period and have experienced spotted light coloured bleeding, dizziness, fatigue, and nausea..

I really dont know if i should be worried or not. Because i don't want to freak myself out.

What do i do now?


PLEASE HELP