Nursing to sleep

Am I creating a monster lol? I nurse my son to sleep every night, and I co-sleep. When he wakes up at night he instantly looks for my boob and I give it to him and then he falls back to sleep, essentially using me as a pacifier. Wondering if I’m creating bad habits or if this is what some other moms do? First time mom here. It’s just the easiest way for us both to sleep. He does sleep in his pack n play next to our bed sometimes but then I pull him into bed with me when he wakes up, and sometimes I don’t even bother putting him to sleep in there. Just wondering if this isn’t smart