Help!

So my daughter dropped her 6th feed that was in the middle of the night. Ever since that my supply seems to have dropped.

In the first 6:30 morning pump I can typically pump 5-6 oz.

at 9:30 about 3-4 oz

At 12:30 3oz

At 3:30 less than 3 oz

At 6:30 I typically breast feed and give her 2-4 oz of a bottle because I know there isn’t much there for her.

This isn’t enough for her at daycare. She typically can drink 4-6 oz every 3-4 hours.

Should I begin giving her a bottle of formula and the rest breastmilk for daycare? Quit breastfeeding? Any suggestions would be helpful! Thanks