Questions about my first iui that will be July 5th

Brittany • Happily married 06/25/16! ❤️ 1 👼🏻 TTC 🌈 baby for over a year now 🙏🏻

I hear your normally supposed to have your iui before ovulation day. Due to the 13th being on Fourth of July the office would be closed. They are scheduling mine on my ovulation day which is the 14th day. I’m a little worried about this. Has anyone else had success on their ovulation day? Please and thank you for your responses!