I have been trying to figure out for the last hour why my siggy is saying that I have such less days left..while those who are like 10 weeks pregnant have more then me. Help!!!

Me: 37 DH: 39 DS: 4
TTC #2 - Experienced Miscarraige on 3/5/13, DnC on 3/11/13
Re: Siggys
I was wondering that yesterday
Me: 37 DH: 39 DS: 4
Maybe you accidently set it to a cat's gestation period or something?