Hello. Im using a period calendar and im 4days late. Idk if im pregnant or not because i had protected sex a day after my ovulation. But i read in the net that if u het sick on ur fertility period aunt flo will be late, sme with having hyperthyroidism. On my ferlitiy week i had sore throat that lead to tonsilitis lasted for my whole fertility week and the day i had sex. I have hyperthyroidism too but its being regulated now. Im taking methimazole every other day. I had sex 3x that day all with condom. Could i be pregnant?