I just took this I'm going to take one in the morning. I'm 5 days late. My reproductive gynecologist wanted me to start proverbs if I didn't start by this past Wednesday. However I'm nervous to take because I had some twinging  in my lower right side and I didn't want to take the probers and it cover an ectopic. The pain was similar to the pain I had with my previous ectopic. They said they will order a blood test on Monday if that would make feel better.