I think everyone feels like that My angel and my rainbow had the same due date just one year apart... I know when I first got pregnant, I found it so strange that the baby wasn't my angel, and when I went for my first scan I remember looking at the screen and thinking it's not Jayne.... so sad for the first sight to have that thought, then I felt bad for my rainbow, that all I could think of when I saw her was my angel... but as the pregnancy progresses your heart confirms it's a new baby, and I think your angel confirms in you that it's ok to want another baby. Your first daughter will always be no.1, and your rainbow will always be no.2... it is a strange place to be mom to children on earth and in heaven, coz you're not a mom of 1, although everyone else will see you that way, yet, you're not a mom of 2, you're somewhere in between, and will have different experiences and emotions to moms of 1 or 2...
I think part of my guilt was that with a new baby, my angel would be forgotten, and to a large extent people will forget angel... but you won't even if you have a whole army of kids after this one!! Others do think that you've moved on, or they start to demand you move on.... don't move on, actually you can't move on, you will always be mom to an angel, nothing can change that, but I pray that your angel will help you through this pregnancy and that friends and family will be kind, and that you can begin to celebrate both the life of your daughter and the new life growing inside....
Hugs for this journey xx