Twin moms who breastfed. Please help me..

Ca

How did you keep up with the milk supply? I had them at 32 and 5 and they were in the nicu for 22 days. During that time I was able to keep up since they only had a little over an ounce each. Now they’re 28 days and I’m ALREADY almost out of milk. I had enough to get me through tonight but I’m afraid I won’t keep up with their demand and they do not take well to formula..

I also should say I don’t put them on my boob ever, I just pump and give it to them in the bottle cause they eat more that way. They are still small and need to grow please help..