-adjusting how you work... thoughts?

So I’m in a management position at work (I work with animals). I haven’t announced my pregnancy yet. Certain days of the week I’m responsible for day end cleaning (changing garbages, vacuuming the building, moping, taking out garbages etc). Is this appropriate for me to continue doing? Or should I ask to do another position? I’d like to continue but I’m almost 12 weeks and starting to feel it afterwards.

I imagine it will only get worse from here? Do I suck it up and do it? Or once I announce ask to do something else?