missjennipenni, how strange that we had the same!
The reason for mine was that I should have been 8ish weeks yet there was no baby/yolk etc in the sac so they thought it was a sudonym (sp) sac and that my real pg was ectopic. My Beta Hcg was only rising 10 to 20% also.
They think my original pg wasn't viable but that I then conceived our baby when I thought I was already pg, it was all a bit of a shock.
When they did the laparoscopy though the surgeon also wanted to do a D&C but we said no, wouldnt be having our little girl if that had happened. They also then wanted me to have methotrexate (which would have destroed baby also) but on the day we went in to have the injection the Doctor decided to scan me first - and there was our baby
She is our little miracle