February has only 28 days.It is usual thing, but I thought this month has 31 days.Therefore I had mistook on this Sunday schedule because I thought it would be in February.Headline image by chaurasia on Unsplash
For the last sentence - Are you saying "I mistook the schedule this Sunday, because I thought it would be in February?" Just want to ensure I'm giving the correct feedback! and yes, February always confuses me with being so short.