Weird Ultrasound

Identical twins come from one egg dividing into two different babies. They can either be in the same sac, or two different sacs. One sac has it's own complications. Having two eggs released would mean two sacs if it were twins. Yes, you can theoretically have twins who are weeks apart in gestation because of the different timing of the release of the eggs. It is extremely rare. Or you could have had two eggs released, two eggs fertilized, and for whatever reason, one embryo didn't 'take' and that is what the spotting is about. Experts say there are a lot more lost twins than we know about because it happens so early.
Congrats on your pregnancy. I hope the complications stop and you go on to have a healthy, happy addition to your family.
R.

I'm not sure if this is what you are explaining, but if you paste the link below, it's an article I read on Yahoo news last week which said a woman had two pregnancies going on at the same time, but were a couple of weeks apart I think. So, there were eventually two sacs...You can do a search on the ABC news if this link doesn't work...
http://abclocal.go.com/kabc/story?section=news/national_w...#

When you release 2 eggs they are always in 2 different sacs. That is non-identical twins. My dad is a non-identical twin. When 1 egg splits into 2 eggs in the same sac, that is identical twins. They share the same chromosomes and everything. I knew someone who released 2 eggs (non-identical twins)...then one of the eggs split in 2! So she gave birth to identical twins and then the 3rd baby was a non-identical twin!

First, don't worry over things. It is a fact that 1 in 8 pregnancies start out as twins and many times there is a 'vanishing' twin. Most women don't ever know they were pg with twins because women aren't usually getting u/s until halfway through the pregnancy. Also, many women experience a 'chemical' pregnancy in which an embryo attempted to take and never could quite so they would have their period as usual or a few days late and will, again, never know (unless they are actively trying and having Betas performed, etc). It could be that in your case another egg was released but either didn't get fertilized or just didn't implant. If you go back in a week or two to check for a hb then you should be able to know for sure by then as right now there isn't much to see in there. Good luck!
T.
PS: In *most* identical twin pregnancies the babies each have their own amniotic sac. They can, however, share the same chorionic sac. It depends upon how late in the process the embryo split. If it splits really late, the embryos could be 'mono-chorionic, mono-amniotic' meaning one chorion and one amnion, which is very rare and very dangerous. If they split early they could be 'di-chorionic' which would obviously therefore also be di-amniotic. My twins were mid splitters and were 'mono-chorionic, di-amniotic'.

J., check out this article below: It referres to 2 separate pregnancies at once, she got pregnant and weeks later got pregnant again and is carrying 2 children, but not twins.

http://specials.msn.com/A-List/Superfetation.aspx?cp-sear...

I think you're just going to have to wait and see. You seen real excited but just be patient. Focus on something else. It looks like you have your hands busy at home. Relax and enjoy.