Is it considered late if you miss your birth control pill by 4 hours? if so what should i do? i take tarina 1/20 eq birth control (norethindrone acetate and ethinyl estradiol tablets usp and ferrous fumarate tablets)

No: A four hour delay is not likely to be of concern. Keep up with daily use for effect.

Agree with Dr. H : You may consider getting an IUD, if your schedule may cause you miss the pills. Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Get HPV vaccine. Wish you good health!