Please help!

I have a gyne appointment next week friday to see if I have potential follicles. But the only slot available is at 11:30am. I've had appointments with my gyne in December 2019 and my superior at work knows about them, but she doesn't know that I'm TTC'ing, so now I don't know what to say to her. My job is 45-60min (depending on traffic) away from my doctor and 15min from my doctor to my home in the opposite direction from my job. + my superior only works half day on Fridays and I fill in for her, and she would want to be off because she's planning a bday party for her husband on the day after. I don't know what to do.