2 weeks postpartum & had sex

Karen
So I am 2 weeks postpartum. I had a natural birth, everything went great no tearing or stitches. However, tonight my husband and I got intimate. I was scared at first because I know I was told to wait 6 weeks but I haven't had any soreness or pain. I was pretty much recovered by the 3rd day after giving birth. By now bleeding has completely stopped I'm only spotting a little here and then. My concern is that my husband accidentally forgot to pull out in the heat of the moment, since we've been so used to having sex unprotected for 9 months. Now I am scared I can become pregnant all over again. I definitely don't want another child at the moment it'll be too over whelming.  Can I become pregnant 2 weeks postpartum? And Is it safe to take an over the counter contraceptive? Being the I'm breastfeeding? How will it affect me and my baby?