Sex 2 weeks postpartum

Me and dh had sex a little shy of two weeks postpartum. Our daughter was born 8/14. The first time he pulled out and the second time he did not. Does anyone know the chance of getting pregnant that early after delivery? Or have any stories that can help me. I only breastfed for the first two days and now she is only formula fed. Anything helps and thanks. I know I will get the speech on not having sex until either dr has cleared it or until the six week mark. I had sex 9 days after I had my son and had no issue with him either. Bleeding has completely stopped at this point.