I took a pregnancy 5 days before my period and it was negative. I went to the movies and week ago and I had the strangest craving I dipped my cinnamon pretzel into my nacho cheese dip. I wasn't even thinking what I was doing I just did it. When I got home my stomach started doing flips and I got nauseated. I took a test two days later. And presto I'm pregnant.
With my first i had one false neg blood test and 5 false neg pee tests. I didn't get a positive until I was 15 weeks