Question for breastfeeding moms

I breastfeed our little guy during the day. Lately he has been sleeping 7 hour stretches at night and we are SO HAPPY since he’s only 2 months old. The thing is, I have to pump now in the middle of the night. I try to pump a few times during the day as well after he feeds to increase my supply. It seems his feedings have been shorter as well. He used to nurse for 15-20 minutes now I’m lucky if he nurses for 10 minutes before he seems full.

My question for you moms who breastfeed: did anything like this happen to you? Did your supply drop because baby was eating less often and for not as long?

I’m worried my supply is going to drop and thankfully it’s been great so far. Our guy is gaining well and I already have about 300oz frozen for when I go back to work.

Thanks in advance for your help mamas!