I breastfeed baby during the day. At night I pump and give him bottles. Since he's been sleeping 5 hour stretches for the past three nights I've noticed that my supply is off, I pump for 15 minutes and I get 7.5 oz. after not breastfeeding or pumping for 5 hours. I get 4.5 oz from my left and only only 2.5 on my right. I didn't use to get that much of a difference before. Maybe an oz less. Im worried cause I don't pump during the day so I'm not sure how much my baby is getting from that side if any at all, because I know milk supply goes way up after 2 am. Has this happened to anyone before and how do I get that one side to be more equal.?