Pabloh,
Your boss or company should be understanding provided you have a doctor's excuse for appointments, etc.
But, please, go to an ob/gyn NOT a GP. The GP just will refer you out anyway. Besides, it is not their area of expertise IF there are problems. The main thing is to get an ob/gyn right away so that you won't have this ongoing problem. I wouldn't worry too much about work at the moment. Just explain, diplomatically of course, what is wrong IF they ask. Hang in there.