Dont know what’s happening!

Okay ladies for a few days now I’ve been having some cramps. Not bad but I do need to put slight pressure on it to get it to stop. No bleeding along with it. I find out from an ER Visit that I had a cyst on my left ovary. Along with the cramping I’ve been going numb. Not while walking or standing but just from sitting straight legged or crossing my legs for not even 2 minutes. Also some back pain that I can’t seem to get rid of. Im a first time mom and have no idea what’s going on. Im a little worried as to having a missed miscarriage. Im 12 weeks and 5 days. Should I be worried?? Im still having all my symptoms of being pregnant. Just need advice.