Gil I think every first time motherfeels this way,I think evey mother asks herself "How can I possibly love another child". It is very normal to have these thoughts. I had them, I couldn't imagine loving another child, I felt like I was cheating on her, she was my entire world, all through my pregnancy with Makayla I felt to guilty, like I was taking something away from her by having another baby, But I was soooooooooooo Wrong, lol and I have the hindsight and experience to laugh at myself and have a little giggle at first timers expense on this very issue.
Love does not divide, Love is not limited, you will feel such emmense feelings of love and joy for your second child and it will not affect your love for your first child. I love my children equally (maybe not all on the same day, lol). The greatest gift you can give your child is a sibling, I know Eden has a Sister already, But she is so much older then her, which is great for later but to grow up with a sibling and share the journey. JMO but with your DH being not so young,:P lol. I would have another one sooner then later, but that's just me. I never put much thought into falling pg except for Allanah and that took a couple of years.:P You are not being silly it is a perfectly normal and common thought.

You'll See........

Dee