I started Low Ogestrel (generic form of Lo-Ovral) about 3 months ago. A few days ago I woke up and I swear overnight my breasts have "swollen" at least a cup size and are very tender. I should have been ovulating last week, so I thought maybe that was the cause of the tenderness and swelling. But that has never happened before when I ovulate. Also, I was a little nauseous last night and had a bad headache this morning when I woke up. I'm a little worried because all of these symptoms happened when I was pregnant with my son, but they also happen when I'm ovulating, except for the breast swelling. Does anyone have any ideas? Thanks!