Very unlikely?

I had sex on the 16th.. I ended my period about the 13th and started taking bc on the 14th of this month. I was only on bc for 2 days and I know it doesn't kick in until about a week or two.. Or that's what the pamphlet said so my boyfriend and I used a condom.. He didn't cum in the condom.. I ended up blowing him and he finished in my mouth. I know there's always a chance of getting pregnant with sex but is it likely I could get pregnant? And please don't attack me saying that if I have to ask this I shouldn't be having sex. I suffer from very bad generalized anxiety and I literally worry about everything. And sometimes I just need reassurance that I should be okay. Thank you.