Understanding Trophoblastic Proliferation After Miscarriage: What You Need to Know

Question
I recently (3 months ago) had a miscarriage at 12 weeks pregnant.  I had a d&c. The doctor told me that when they did the pathology that they found some trophoblastic proliferation cells.  He told me at the time that it could cause me to keep getting positive pregnancy test and that he was going to monitor my HCG for a little while, but it was rare for it to cause any problems. My two week HCG was at 13 and then a month later was at 1.  After that he gave me the ok to start trying again.  I have had normal periods since the d&c and I am now at cycle day 16 of a new cycle, but I have been having bad breast tenderness for the past week (starting at cd9). It feels like it does after I ovulate, but I keep track of when I ovulate and I am certain that I haven't.  What else could cause breast tenderness this bad.  I took a pregnancy test a week ago and it was negative, just to make sure I had no HCG coming back.  I am planning on taking another one first thing in the morning.  I would also like to know a little more about the trophoblastic proliferation cells. Thanks

Answer
The cells forming in the uterus during a pregnancy are undergoing a lot of transition.. they are changing rapidly.  The distinctive differences between normal and abnormal cells in this environment is pretty vague.

To summarize, I would not think that a common about trophoblastic cells and then breast tenderness adds up to you getting one of the pregnancy tumors.  If you do want to read, you may search on molar pregnancies but  pathology is not an exact science and I would bet that this was an over read.