First OB appointment/new job

What is the Longest you’ve waited to schedule your first OBGYN appointment . I’ll be 6 weeks on Thursday (day my “prenatal “ enrollment “ appointment is scheduled . But I also started my new job today 😭😭. I feel like it’s wrong for me to ask my boss if I can request off when I’m completely new . I thought about rescheduling on a weekend (Saturday) . My job is a M-F 9-6pm but the damn clinic said they can only see me on weekdays and the only next opening they have is for next month. What should I do?