I waited the 6 weeks coz it was made clear to me even if I felt fine it was major surgery & if you do damage its so much worse. My GP told me at 3 weeks your something like 15% healed but by 6 weeks you're closer to 50% healed. Also no mopping, vacuuming or anything that twists for 3 months & no heavy lifting for at least 6 months (not sure if you knew this).
Oh I drove but no way was I doing any real work for six weeks - but I'd have happily taken even longer!

My ob said braking quickly was not like lifting or straining and wouldn't do the same kind of damage, because of the area involved.