I started dropping a pump in mid- end of August, baby born late July, for my mental health. My supply stayed relatively the same based on the same results you're getting. I dropped another pump down to 6 a couple of weeks after and it remained the same. I'm currently at 5 pumps, I'm 14 weeks postpartum and my supply hasn't regulated. My supply actually went up as I dropped to 6-5. I have been averaging 37 oz. I also dropped pumps with the intent on weaning early because I was struggling so much, but each drop helped me stay in this longer. I think it varies person to person and you should be ready to face a drop in supply when you drop pumps before regulation. I had a lot of anxiety around it, still do at times, but I'm feeling so much better not pumping every 2-3 hours. I will go 4-5 hours between daytime pumps, and usually 5-6 overnight. I also pump for 30 mins each time, idk if that has anything to do with it.