Can I get pregnant that soon?

My daughter has just turned 2 months old and my partner has been on at me about sex as it's been a long while. My first after birth period ended yesterday morning so last night I finally gave in and we said we'd try as I was nervous about it being the first time since having my daughter, we didn't have protection so we agreed to use the pull out method. Long story short, he didn't pull out despite me constantly telling him to when it was time (mood killer!). So now my question is could I get pregnant that quick. I will still be in the time frame for the morning after pill however I stay clear of meds so if there's no chance then I'd rather not. Thank you!