hey, im nicole, umm.. i got pregnant at 16 and after i had my baby, i had to do about 2-300 sit-ups and walk almost 2 miles a day.b/cuz i was on the high school track team! i thought it was good 4 me, b/cuz that was what my coash and doc. told me to do, but..it just messed me up some more...but, now im happy..im still on a track team!