How l9ng do you have to wait to get back to working out?

I am a horse trainer and only stopped riding from the 6month point... due date is 10 days away...

Providing I feel ok in myself after I give birth, how long do I have to wait before I get back to working out and riding again? I hear a lot of friends say theyre back in the saddle after a couple of weeks but my partner keeps saying I have to wait for the relaxin hormones to leave my body??

How long did you ladies wait before working out again?