Hi I found out I was pregnant and worked out that my last mp was 30 jan that would make me 11 weeks. I went for an u/s today and all they could find was a sack. I had an implantation bleed on 5 march can you work out your due date from that? Im so worried in the scan they said it might have got to a certain stage and stopped growing. I have a daughter who's 5 and she was born fine with out no problems I have to wait 2 weeks to see if it grows its going to be the longest 2 weeks of my life I just wanted to know really if I could work it out from the implantation bleed because then it would make me about 6- weeks. Thank you k.c

First of all I am sorry to hear you have to go through that. I can understand your anxiety to have to wait 2 weeks to find out.
I think it would be hard to figure out your due date from implantation bleeding, but Im not positive. Because I think implantation bleeing occurs anywhere from 6-12 days after conception so it would pretty much be a guess.
But I wish you the BEST of luck and hope all is well with the little one.