Gotten pregnant using pull-out method?!

Cheyenne • I an 27 and I have a 3 year old boy, 6 year old boy, a 7 year old little girl, and 16 month old little girl
So I am 2 weeks pp and I had sex today. Hubby didnt use a condom but he did pull out. Wehave never used that method before and I am not on BC. I know its possible I get pregnant and I am more fertile right now (although I am EBF so maybe that will help) My question is who has actually gotten prego when using the pull out method?