So here is the deal when I first found out I was pregnant they tried to tell me that my HCG levels were only eighteen and within two days they triple actually quadrupled when I went for my first ultrasound they tried to tell me that I was only 7 weeks and 2 days and that my conception date was on April 18th but when I go back in my calendar here on glow I see that I did not have sex at all from the V until the 20th of April how is this possible that my conception date would be on a time that I did not have sex is it possible that my dr. Got my due date wrong? I feel more like around 12 weeks then 10 weeks anyhow. ??? Help I need answers