Second Baby

I am pregnant (5 weeks) with my second baby. my daughter is 2 and I love her to pieces. I'm already feeling anxious and worried that she will feel left out once the baby gets here. my sister just had her baby and we are up here visiting and my daughter has been so helpful and aware of the baby. (Granted I have to remind her that she's not a doll sometimes) it melts my heart seeing her like that, but it also kind of makes me sad that it's not going to be just my her and daddy anymore. She will have to share her time. part of me feels guilty and selfish, but another part of me is happy she will have a sibling, someone to be close to. How my sister and I were.