Why does the calendar change?

πŸ’™πŸ’™πŸ’—DesireeπŸ’—πŸ’™πŸ’™ β€’ Mommy of 2 boys and 1 girl πŸ‘¦πŸ‘¦πŸ‘‘πŸ‘£πŸŽ€They are my everything

It says 1 day after ovulation and I haven't ovulated yet ? Is that going to mess up my chances for conceiving once I do get my positive opk? I'm on cycle day 18