Hi I'm 24 weeks pregnant

When i had me 20 week scan I was told I was having a girl, then they said they were just going to scan my ovaries where they found two cysts on my left ovary!

One is 7cm about the size of a peach, they couldnt see much on the ultrasound but they could see some solid matter, they sent me for an mri.....I had it (terrifying) but they couldnt tell, so I have a second mri this thurs I'm 34 and I have an older son who is 14 and he has special needs.......I'm trying so hard to make light of it all but I just dont know how to feel right now! Last thing u was told was that there is a small chance it could be cancer!