Chance of pregnancy?

I’m trying to track my cycle and I’m 7 weeks postpartum. We had sex today and it says I’m supposed to ovulate today? But I don’t know if that’s accurate because I didn’t have a period for nine months.

He didn’t pull out like he usually does.

We want to wait until at least July to actually start trying so it’s not like we don’t want more kids.

What’s your experience with unprotected sex a month after birth? I feel like my cycle is all screwed up right now so I feel like pregnancy is slim?