Ladies who've had fairly quick births...

Alright so I've been told that one who exercises regularly, etc. etc. Have fairly quicker births than a woman who doesn't really involve herself in too much physical activity. Since before I found out I am pregnant I have had a job that involved heavy heavy lifting, running up and down stairs, and moving packages then at night I'd walk home about 6 blocks 5 days a week. At the job I am at currently I stand for hours, run back and forth, walk ten blocks uphill n downhill to work then ten blocks uphill home and. Carry heavy trays, I'm constantly on the go.

My question is have you ladies who have done some fairly strenuous physical activity had "quick" births and do you mind sharing those with me? 😊 just trying to see what I MAY expect