pregnancy with IUD

I have had an IUD for almost 5 years, I started bleeding and passing clots a couple of weekends ago...  Went to have the IUD removed and found out I was about 6 weeks pregnant.  I thought I had miscarried but when I had a sonogram the same day there was a baby with a heartbeat way up in my uterus.  Also the technician told me that I released two eggs so they think I may have miscarried a twin.   I went in the next day to have the IUD removed and had a little brown discharge for about 2 days.  I also had a couple of beta screenings.  One on 09/5 (11,178) and the other on 09/07 (13,293).  Doctor said that does'nt look very promising.  I also read on the internet that you usually can't see a heart beat on a sonogram until 7 weeks.  Could I be further along?  The doctor initially thought that my uterus felt about 11 or 12 weeks.    Given all these obstacles is it probable that I not miscarry.  I have 3 children and a stepdaughter, and certainly did'nt plan on having anymore.....but now I am a little excited and definitely worried... so many different emotions.  I go back a week from tomorrow for another sono.  I am also concerned about my lower back pain.  I am also 39.

[dsmommy]

Wow that is confusing, scary and exciting all in one.  Keep us posted and good luck!!!  

[pcarsey]

I would think that your hcg levels could be messed up a little if you did in fact lose a twin. I couldn't be certain on this but it seems to me thats the way it would go. Have you posted this on the fertility forum?? Those ladies have experienced so much they may know what to tell you. I will be praying for you.
~Patty

[crash39]

Thanks Patty.  Fertility Forum is full right now, I will try later.