Being ill and haven't been able to breastfeed

I was really ill over the weekend with a sickness bug and wasn't well enough to feed without feeling faint/needing to go sick. I didn't breastfeed my little one for just over 24 hours, and in that time I only pumped twice. My partner fed him the expressed milk as well as frozen milk/formula top ups, but im worried my supply will have dropped massively now. I've been feeding as much as I can since then. My little one is 6 months this week. I really don't want my breastfeeding journey to end earlier than I'd hoped :(