How do you handle missing so much work?

I have missed so much work from 3 miscarriages, infertility testing, hematology appointments after finding out I have a clotting disorder and now all of the monitoring appts for <a href="https://glowing.com/glow-fertility-program">IUI</a>. I do not feel comfortable disclosing any of these things with my employer or fellow employees and have said I’ve had Dr. appts for random things. I literally don’t miss work for anything other than medical things. Today i was given a letter saying it is “critical” I work on my schedule.

Is anyone else in a similar situation? It’s impossible for me to go to a Dr. appt and not miss work from it. Discussing the infertility with my employer is not an option .. my supervisor would immediately be thinking about how this would affect the company. I do plan on leaving once I have a baby but would like to be pregnant and in the clear before telling them this.