How to transition baby to crib?

Jasmine • Mommy to two (one on the way 8/11/19)💕 YouTube 🎥 21 Years Old 🌸

My son is 4 months old and during the day he naps in his swing and at night he sleeps in the bed with me. A month ago he would refuse to nap anywhere but my arms. Anyways, I really want him to sleep in his crib by 6 months. I’m going to start with naps but so far he completely refuses to sleep in it. Any tips?