Pumping more but getting less?

Madison

My son is 7 weeks old and we’ve been having trouble nursing since about 3 weeks old. We started supplementing with formula because he wasn’t getting enough from me (and we believe he has a lip tie that we will be getting checked). This past week I’ve been pumping more than normal trying to get my supply up so that we could hopefully give him breastmilk only, but since I’ve been pumping more I feel like I’m getting significantly less than before! I have drops that I take to help with production, I take omega 3 pills, I drink milk tea and have tried to really increase my water intake. Does anyone have any insight as to why my supply may be dropping?? I’m so discouraged by it 😭