Aww mama, I can totally feel how worried you are, and it's very normal to feel like that when something unexpected shows up on scan Honestly, fetal ovarian cysts are actually quite common and majority of cases resolve on their own as baby grows, a lot of mums in forums share that theirs disappeared by third trimester or after birth, so there's hope! But because you're quite stressed and need proper answers about what this means for your baby specifically, it's really important you see your OB/GYN (maybe another one for a second opinion since the cyst wasn't there at 22 weeks), they can monitor it properly at follow-up scans and explain what to expect, which will help ease your mind much better than google can.