Severe drop at 7 months PP

Started my son on solids a month ago... I have still been breastfeeding and pumping at work. I still give him the same amount of milk at daycare everyday and feed him breastfeed him the same amount at home everyday and on the weekends. Today when I pumped my first pump I only pumped 1.5 ounces. It’s been slowly decreasing from 5 ounces to around 3 - 4 ounces... but 1.5?!! I freaked out so I went to get him and breast fed him at home the rest of the day. I went to the store and got Gatorade and oatmeal. The things I did when I first started breastfeeding to help my milk come in. Will my supply come back or do you guys think I’m drying up? I have been in tears all day. I’m going to powers pump in an hour to try and see if that helps...