No cum, but late preriod

We had sex a week after ovulation and the week after that too. He didnt cum. At all. Not the pull out method. He just took it out after 10 seconds because i told him it's too risky. So we put the condom on. The condom didnt break and he only ejaculated when i was giving him a blowjob, after sex. Could precum get me pregnant? Because my period is late. Ive been staying up late for a whole week because of work so maybe it's stress? But i'm still worried. Can i get pregnant because of that 10seconds unprotected sex?