More breastmilk!

Rocio
So I'm exclusively pumping because the baby had a lot of trouble with latching and this weekend we had a baptism to attend so I only pumped like 2 times during the whole day and now I feel like I can't even get like 2 ounces per pump session which is nothing compared to what I was getting before. Is there anything you ladies recommended that I can take to get the milk flowing again before it dries up completely?