Pregnant on your own after ivf

Delilah

So I had to do <a href="https://glowing.com/glow-fertility-program">ivf</a> to have My daughter. First implantation was a miscarriage, 2nd one gave me my daughter who is now 1 years old. Recently me and my husband have been trying and getting pregnant. I got pregnant in July 2019 and miscarried in August, nothing formed. Then recently got pregnant in December and I just found out I miscarried. No heartbeat was detected. Has anyone had this happen to them? We were so excited that we were able to get pregnant on our own but then end up miscarrying. Has this happened to anyone? If so what tests or what was done to prevent this from happening? Do I have to do <a href="https://glowing.com/glow-fertility-program">ivf</a> again?