Hcg level symptoms and conditions

I was on Femcon Fe for around a year. I didn't experience any negative side effects, it was easy to remember and quite effective. In May of 09 I started experiencing some weird symptoms (mind you, Ive been on this drug for almost a year by that point), my breasts were so tender it hurt to touch them, I was overly emotional, and exhausted all the time. I complained to my husband and my friends. They all joked and said "Uhoh sounds like youre pregnant". I already have one child and I figured I would KNOW if I were pregnant. Besides, I never missed a period. Never, not once. Finally, in July I broke down and made an appt with my OBGYN to discuss what was going on. My Dr. said she could almost guarantee that I wasn't pregnant and that it was a hormonal imbalance. Well, she got me a blood test and sure enough I was pregnant. 2 more blood tests down the road (because my HCG level was fluctuating strangely), they scheduled me for an ultrasound. Not only was I pregnant but I was 10 weeks pregnant! I will swear in a court of law that I never missed a period. If anything, my periods from May-July were heavier and lasted an average of 9 days. Junes period lasted almost 14 days.
Anyways, September 17th after a detailed 20 week level 2 ultrasound, my Perinatologist detected fetal birth defects. My baby has hydroureter and her left kidney is significantly malformed. The kidney will never improve and they can only monitor its function until birth and the bladder will have to be shunted immediately after birth to drain the excess fluids.
I will never EVER take another birth control pill...EVER. My daughters life will be forever altered due to Femcon. Ladies, beware.

I have been on the NuvaRing for about 3 months. Just after I started it...maybe two weeks later I got the worst case of heartburn ever. I had never had heart burn before. I had just eaten a big meal so I thought it was that. Then a few weeks later I had another severe case of heartburn that lasted all day. I threw up and by night time my back was in so much pain I almost went to the ER. Finally fell asleep and woke up the next day and it was as if nothing had happened.
Went to the doctor and they tested for ulcers and found nothing. Had a few more minor bouts of heartburn in the next 2 weeks. Then this morning...same thing. Strong heartburn which has gotten worse through out the day and not my back is in serious pain. Just hoping to get to sleep. Called my doctor and told her about this possibility and she had never heard of this. She told me to remove the ring to see if there is a correlation. Removed it a few hours ago. If the heartburn goes away and doesn't come back I will have an answer.
I eat quite healthy and am not overweight. I exercise regularly and don't take any other medication. Has anyone else experienced this with the nuvaring?

Has anyone had extreme heavy bleeding/clots after having the Mirena removed? This is day 3. The last time I had such heavy bleeding I had just had my son. When do you start to worry about the bleeding?