Have many others had breech babies turning after 33 weeks?

I am 33 weeks pregnant with second baby first one went perfectly, natural birth no complications. And I had really hoped to have this one go the same way but my doctor has told me my baby is breech and it's not likely to turn now because it's been this way for so long, if it doesn't turn before 37 weeks she wants to book me in for a c section at 38... 
Which brings me to my second question... I'm wondering how long it takes to get strength back in your tummy after c sections? I'm so keen to start exercising again, been super sick with this bubby and haven't had the energy to keep as fit as last time.