If a hiv test is conclusive at 12 weeks which is 84 days. why do some hiv specialist say 84 days and others say 90 days. is there a difference at all?

6 months: To be sure you need to get a HIV nucleic acid test at 6 months after exposure. Have a healthy diet, exercise, drink plenty of water, have safe sex, and get HPV vaccine. Wish you good health! Nutrition: http://www.choosemyplate.gov/.

It is the same: 12 weeks x 7 days = 84 days 4 wks = 1 month 12 wks = 3 months 3 months is 90 days. About the same!