i am 33 years old, i had my periods on feb 6th 2010 and had my iud removal on 20th feb due to infection, also had sex with my husband on 19th feb ( IUD was there). my next period due is on 7/3/2010 but i have not got it yet. what would be the reason, i have no pregnancy symptoms , i am very normal.I am taking meprate tablet for past three days from 8th mar to 10th mar i am feeling thirsty and drink lots of water and frequent urination once in 1 1/2 hrs.