Please help to ease my mind or give advice if necessary...

This evening I went to get my nails done. I do this at my bff's house I have a private tech (she's a family member that comes to me) usually I bring my daughter(3 months on Saturday) but my best friend has pots and has been pretty episodic today so didn't feel comfortable handling the baby if necessary. Well I forgot my pumps!! So I went 6 hours without pumping after her last feed. I'm very confident that both breasts were successfully drained before I left home. How much will this affect my milk supply?