Hugs Heaven. I had your very concerns before having DD2. But once DD2 was here her place in the family just became natural. I felt guilty about having to share myself around and at first DD1 didn't adjust easily. But this time was very short and I made sure that DD1 always had some one around to give her some extra cuddles and attention.

Having a sibling can be the greatest gift and life lesson for your first born. They learn to share, they learn different forms of love, they learn to be patient. And in return they gain the love of another human being. Your love will change for your DD regardless of having another sibling around. She will grow and change too

Don't think of love as being limited. Have faith that you have enough love for however many babies your are blessed with.

ps I didn't say that having 2 babies is easy....But you learn and adjust