Starting to get discouraged!

My son is 8weeks old and I just started nursing again but it seem like he isn’t getting enough. I was pumping every 3 hours only making 2oz if I was lucky a total on both breast. I gave up nursing the first time because I was just mentally over it after being induced and having a really rough pregnancy. I honestly don’t know what to do! I went to see an LC today but she didn’t do a weight check before or after feeding. Ugh I really don’t want to give up but I don’t want to starve him.