Preg 3 months pp is it even possible??!!!

ok, hear me out. I got my period right on time at 2 months pp. my husband and I have only had 3 sexual encounters since I had my baby 3 months ago. Once we tried sex with a condom and it hurt too much I had to stop him before he finished. Second time I gave him a BJ in shower and he finished on my "bum" but I remembered being mad at him because I think some got on my outer vag, and third time he used condom and finished. Both times with condom we used lube but I was still super dry and to be honest the second time it felt different, like I could feel the condom. He didn't mention any tear so I assume there was no noticeable hole. I'm now due for my period, 3 months pp, and nothing. I had horrible back pains a few weeks ago that felt like ovulation. Is it possible? Don't judge me I know it's not likely since penetration is needed and I didn't notice a condom failure but I know things happen. Has this happened to anyone??? I'm going to take a test but I'm kinda of freaking out. Anyone have any advice???