Hi doc, I'm 24 years old, 53.8 kg with about 160cm height. I have missed my periods but my pregnancy test came to be negative and the scan was also nothing to be seen inside. My doc prescribed me with Norethisterone 5mg tablet, 3 times daily for 5 days. Yesterday was my last day of taking the tablets but I'm still not having period yet, not even the pre-menstrual symptoms as I've been suffering the cramps monthly before the period come. I have regular menstrual cycle - 28days. The first date of my last period was on 11th july but i'm not having any period until today. Am i pregnant? Please help.