pregnancy after a baby

So I have a 3 month old boy who came 5 weeks early. He weighed 6 lbs 2 oz and was delivered by emergency csection. He stayed in the nicu for an infection that the doctors said "it's a very common infection in newborns so nothing to worry about." He was doing great in the hospital and has been doing great since. Now my question is, how many of you got pregnant so after delivery? I don't know if I am or not, I'll test in about a week-2 weeks. I had a period from June 9-22. I mainly do formula with some breastfeeding. I try to breastfeed as much as I can but have a low supply. My husband and I will obviously be excited if I am pregnant. I was put on birth control but did not take it from the 20th-29th. We went out of town and I forgot to bring it. I haven't took medicine, especially birth control in about 3 years so I'm not used to having to have it with me at all times. The reason I made this post is because I would like to know who else got pregnant soon after birth because I went on Dr Google 🙄 and it says that there are increased risk for mother and baby and that there is also some research saying that the baby may have autism. It says that there are risk in women who have had a csection because the placenta may attach to the wrong area or not attach fully like it should. Now is this horse crap?