Help! My milk supply decreased!

I’m a first time mom and I noticed a huge decrease in my milk supply. It literally happened over night!

I went from producing anywhere from 5-6 ounces, soaking my shirt, and my breast feeling hard to now only being able to pump 2 ounces, my breast feeling soft, and I’m no longer leaking like before.

I can’t make enough to satisfy my baby, he’s 2 months old and eating 5 ounces every 3 hours