Breastfeeding

Nija
My son is almost two weeks old. I decided to pump my milk into a bottle for him but since yesterday I've noticed my milk seems to become less and less. Ive allowed him to latch in hope to increase my milk supply and also trying to pump every two hours if I can but it doesn't seem to be helping. I don't want to resort to formula. Does anyone have any suggestions to get my milk supply up?