I know that while pregnant we are not supposed to change cat litter, but my husband refuses to touch the litter box. I asked him to clean it last week before I left for my friends house and it still has not been changed. Is there anything I can do? I keep nagging him, and he's the type of guy that he'll completely shut down if I nag him too hard. Are there any safety precautions I can take that would allow me to change it myself? Thanks!