Hi!
If you were my patient, I would advise you that there is a very rare condition called a heterotopic pregnancy in which a healthy baby is growing in the uterus and a twin in developing in the fallopian tube. This condition should be visible on ultrasound in many cases. It is more common after in vitro fertilization and embryo transfer.
Good luck!
Dr B
the video is my 46 year old pregnancy- my shocking story it is 2 story in the the one for u I also there
http://www.youtube.com/watch?v=uVNSmZp0kH4 this is the link
I watched on youtube once a woman from England who was pregnant the first U/S showed 1 sac , the 2nd U/S showed 2 sas and the 3rd U/S showed a third sac outside of the uterus so she was now having triplets. and the baby was growing outside of the uterus . They had to take all 3 babies weeks premature and incubated them and the boy did survive. BUT every ectopic pregnancy is different. It is very dangerous to the parent and child but this was pass 22 wks if your doc says the baby will not survive because it will pose a life threatening risk to you its best to listen unless you have FAITH to believe in MIRACLES.