At 7 weeks I was still rocking Natalie to sleep. At around three months I started patting her in the cot and we still do this for most of her sleeps. She did get very upset in the early days if we tried to let her settle herself, and it felt to me like we were going backwards.
My DH also thought Natalie should learn to self-settle early on, but I explained that I preferred to rock or pat her - and in our case it is mostly me who settles her so I figured it was my choice, LOL.
Now she is nearly 6 months old, I have decided to give her the opportunity to self-settle each sleep. If she cries, I pat her to sleep. If she's not crying, I leave her to self-settle. She has gone to sleep several times by herself now.
I'd say if you are happy nursing him to sleep, just go with it (I'd only change if it became a problem for you.)
When I post about settling/sleeping, I'm always reminded that their sleeping patterns change all the time anyway. Just go with what works at the time and deal with tomorrow tomorrow, if you're comfortable with that.