So I have taken around 20, yes 20!!! Pregnancy tests, both blue and pink dye. Only the blue dye shown me a positive, all of the pink dye tests(just cheap ones no fr)shown negative. All of the blue tests, including a clear blue pee stick shown positive within the time frame given. Has this ever happened to anyone? With my lb the pink dye test shown positive straight away. I have a scan booked in next week. Just feel ashamed if I'm not pregnant. Been experiencing ache in my lower tummy like my uterus is stretching but I keep thinking I'm imagining it. HELP!!!