Hi, that's fine, some people never get engorged. For most of us, engorgement settles down around a few months in, as supply and demand equalise.
Have you seen the website www.kellymom.com? I highly recommend it for any breastfeeding issues. It's great at providing expert reassurance for topics such as "Is my baby getting enough milk?“
Enjoy your baby sleeping all night while it lasts! (It may all change at the next growth spurt.)
It sounds like you are doing really well. I wish I had known about Primal eating when my children were babies!