How to love both children evenly

I’m due soon with baby number 2. I love my daughter very much, but I’m scared that when I have my son that my love for my son will be greater than my love for my daughter. You always hear about the “mother and son love” and you can tell my daughter is such a daddy’s girl. She prefers dad over anyone. I’m scared to lose the bond with her Over my son as he will need a lot more attending to. I’m due in 2 weeks and I’m getting nervous. Any tips? Any one else go through this? I feel horrible