Advice needed

I just found out I’m pregnant- 4w1d so super early

I’ve had a miscarriage before so naturally I’m worried. I had a hysteroscopy to remove a polyp scheduled for next week which now I have to cancel but I took off from work for it- I don’t want to tell anyone I’m pregnant yet so how should I take the days back? I don’t want to continue to have them off and risk them asking for a doctors note.

Also- I’ve been doing a training that I still have 3 sessions left on. It’s a training to get out of hair pulls/choke holds etc and how to put someone in a standing and sitting restraint. One of the moves requires me to walk with someone in a hold and use my hip to lift them off the ground for one step at a time. I’m now afraid to continue the course but again don’t want to tell my job I’m pregnant

*side note- the training is required for my employment but since I’m the director of the program I won’t actually need to do any of it and I don’t work directly with the individuals myself so I’m safe during my pregnancy.

What should I do ?