I Had Protected Sex With My Boyfriend 14 Days After

I had protected sex with my boyfriend 14 days after I was done bleeding from my period... im now 3 days late for my next one but am experiencing cramps and white discharge.
The condom he used didn't break and he pulled out well before ejaculation.
I'm scared I'm pregnant. Is it likely?

I've heard that stress can prolong it and I was just in a car accident and we weren't eating very healthy this weekend. I'm still worried though.