Hi @naturegirl5, I haven't had a hip replacement yet... 🙂 but I'm close to a year out from a total knee replacement and am trying to keep exercising as much as I can because I also think it's important. Sounds like you are doing great with exercising but just trying to figure out how much might be too much. I do all of my exercises at home using an elliptical and a recumbent exercise bike. I also have 10 pound hand weights that I use but not quite as often but then I'm an old guy. I did find a PDF file from Vancouver Health - Exercise Guide for Hip Replacement Surgery that has a section for exercise guidelines 3 months to a year starting on page 33 of the PDF. One thing on the page that I thought might be helpful for you is a chart for hip joint loads during exercise. Page 38 lists a lot of Internet resources that may also be helpful for you.

Exercise Program for Total Hip Replacement - Vancouver Coastal Health
-- https://vch.eduhealth.ca/PDFs/FB/FB.863.Ex37.pdf