Is holding other people's children anything like holding your own?

Was this baby unwanted? My sister had her baby not to long ago, and she didn't want the baby but didn't support abortion. She neglected herself and the baby inside her and didn't care at all about her baby. But after she gave birth to her baby she instantly never wanted to let her go! So maybe when you have your baby, and look her/him in the eyes and hold them for the first time, you'll instantly fall in love and love your kid! I don't know if that helped but good luck!