Bro... I know. Lol kidding, I'm sure you're a great dad.
I have two little girls, so we're still playing man to man to defense.
Me and my buddy (who has 3), discussed something similar. I know the feeling of not having that immediate bond. I think it's because it's like: "who is this kid?"
It took me about 6-7 months both times.
Another friend at work said it was almost a year for him to connect with his son. He said, and I quote:
"I don't know if I even like this kid!"
Lol happy dadding!