advice

Okay, well for starters my Son is 8 weeks old, however he's only been home a week since he's been in the nicu and a preemie. Well they had me pumping the whole time and bringing him the milk well I never got that much milk anyways so that was always hard. Well when he came home I thought "okay good now I can finally breastfeed all the time " maybe it would help my supply vs pumping etc. well when he was coming home the dr said not to breastfeed that much just to pump and bottle feed him my milk plus add the formula with the extra calories to my milk I guess to help his weight gain. Well then I got discouraged and kinda gave up the last few days like I haven't pumped well I really really want to breast feed so today I started putting him on the boob, my question is  If my milk was beguinning to dry up since I didn't pump for a few days, can I start it back up again by breastfeeding him? Before I tried I would have to really squeeze to get a little bit but after he got off of it I noticed it was easier to get milk out