I've heard women are fertile after having a baby...

I had sex without a condom but only quickly and then put on a comdkm. I'm not on BC or breastfeeding. 
On a scale of 1-10 (10 being very likely) how likely could I get pregnant??i know it's possible but how likely? 
Edit: not looking to get pregnant again but It wouldn't be the end of the world either. I have a regular period since 6 weeks. I should be getting it on or around feb 28 🤞🏻