First time mom

I feel like something is wrong with me. I am a FTM and I just don't feel attached(3 months old). Like I have left my baby for a few hours to get dinner and grocery shop and I was perfectly fine. I go back to work this week and while i am dreading it. More so the up with a baby and getting up for work as well. I feel like a bad mom and maying I'm not meant to be a mother. I see other moms who cant leave thier babies . I don't feel that unconditional love everyone talks about 😔😔

I've been praying about it. What's wrong with me.