Ok everyone, I just had another ultrasound today and all was normal. I saw the sac this time . The doctor now estimates I'm 5 1/2 - 6 weeks along, and my due date as of now is around april,5th (was march,31rst). BUT we won't know for sure until my next ultrasound so I'll stay on this forum until them to make sure :) There was only one little sac, I was worried about having twins because it runs in our families. I feel so much better , thanks all for your support and advice. I can't believe my little 1 year old son RJ is going to have a sibling :)
**hoping for a little girl *fingers crossed**
,JamieLee