Cyst?

Hi did anyone by any chance developer breast cyst while pregnant? The other day I was examining my breast and I felt a little ball you can say the size of maybe a small blueberry or maybe smaller.. I highly believe it’s a cyst since I’ve had one before bigger than this yearssssss ago and it feels similar… I’m just scaring myself googling stuff 😭 it’s not super hard and it moves around and feels smooth… but i also have read that hormones can cause them…