im 7 weeks PostPartum. what exercise can I do other than walking cause I cant go outside. like what…

im 7 weeks PostPartum. what exercise can I do other than walking cause I cant go outside. like what can I start with. 10 situps 5 pushes day one. 11 situps 6 pushups day two. idfk what to do they say u cant over work urself but I clearly will never be able to go out to walk in the middle of the winter.