Last night, my midwife called with the results of the ultrasound. It turns out that my right ovary is enlarged (sorry if that's TMI) so now I have to go see a doctor who can tell me what we should do about it. If it's just water-filled, there's no harm in leaving it. If it's filled with anything else (???) they might need to go in and biopsy it, or possibly remove it. We'll see what he suggests, and I'll keep you posted!