Endometritis & Building Milk Supply

Hello! I’m 3 weeks PP, and unfortunately just returned home from a 2 day hospital stay. I had both a UTI and Endometritis, and had to have a D&C procedure to remove the remaining placenta that was in my uterus from child birth.

While at the hospital, I had to have 2 IVs in, which made it difficult to feed my newborn. I ended up pumping most of the time, but there were lengths of times I wasn’t able to pump at his normal eating intervals.

My question is: I went from a really great breastfeeding journey and supply to now not feeling that fullness of plenty of milk. Can I rebuild my supply prior to my hospital stay? Suggestions? I’m pumping after he feeds (around 40 min/ 20 min ea breast), but I’m worried I’m not doing enough.

Advice or reassurance really appreciated. 🙏 thank you!