uggh I had a laparotomy in 2001 to remove a large ovarian cyst that was growing on my right ovary. I wasn't PG at the time but we wre TTC#1. I unfortunately lost my tube and ovary and had to same worries as you (was it cancerous???) I've been diagnosed with cancer in the past so my chances were higher of it being malignant, but thankfully it wasn't. My cyst was the size of a soccer ball and was just filled with fluid. From memory is was a simple cyst.

How was your recovery after the lap?? Mine was the pitts.