Probably not what you really want to hear but... that sounds pretty fantastic for 6 weeks.
The first 3 months are often called the 4th trimester & it's not uncommon for babies to sleep much better when they have body to body contact & movement.
I found for my own sanity (second time around where I had learnt from first time) it was better to put all my energy into making sure bedtime was done the way I wanted & one nap in the daytime was in the crib, other than that I just did what would give the best nap in the situation... carrier, stroller or car.
So much changes in the first year of life so it's important to not get to caught up on the small stuff that adds to the extra anxiety.
My first was "spirited grumpy" which meant he didn't follow ANY textbook patterns, while my younger was far more textbook, but he was/is very Low sleep need, so once again didn't conform to textbook patterns & I've realised its helped long term (esp now with a teenager) to change my natural routine following tendency & be much more able to roll with the punches.
Funny as it sounds, often letting go of the need to have a 'decent' nap is the time that the decent naps come about. Young babies really pick up on our energy & the more they feel our frustration & anxiety the less settled they become. - I learnt that the hard way!