Am I the only one who conceived unknowingly and started birth control and the birth control HELPED the egg attach and stay because of the progesterone?

I had 4 miscarriages and the last one I had, my significant other and I decided on birth control until I figured out why I kept miscarrying. Well I started taking birth control and a few weeks went by and I had STRONG prego symptoms. SO. I decided to take a test and BOOM! BFP! I immediately set up a Drs appt that same day and come to find out, the reason for all my miscarriages is because I lack the progesterone hormone my body is suppose to produce. And the birth control actually has progesterone in it. Progesterone is what makes the uterus sticky for the egg to attach and keeps the uterus a healthy habitat for the egg to stay after ovulation. Therefore, I conceived and the progesterone that the birth control had in it kept my baby my alive!!! I had to take suppository progesterone up until I was 12 weeks. I'm now 6 1/2 months with my first baby and it's a boy😍