@rightway16 Babies are often very very sleepy in the weeks after birth, and that changes as they grow.
I wasn't really able to transfer my babe to her basket until literally last week, and even then not for every nap. I didn't do anything new, no new tricks or different techniques. She just changed as she grew. She's 3 months old.
Before that we contact napped, I wore her in a carrier often, we had some walks with the stroller, sometimes I could lay her down next to me on the couch or in bed. If I was close she could sleep. I still do those a lot.
You're probably not doing "anything wrong", it sounds like you might just be doing the "wrong thing", if you get what I mean. If you want to, try to keep him close when he sleeps.