Post part of exercise help

Hey ladies! I am 4 1/2 weeks postpartum and feeling ready to get moving again. My precious baby girl doesn't let me put her down, so I'm stuck with little time alone unless she's with her dad in the evenings. Usually I wear her in the moby or sling during the day. I've been walking since about two weeks PP, but I fee ready to start working my abs, thighs and arms but I don't know where to start. Any suggestions on how to sneak in exercise ? I'm also wanting to start super slow because I am exausted, and am still sore down there.