So my boyfriend and I had sex about 2 weeks ago and the condom broke not once but TWICE. I took the plan B the next day, but the day I took it was the same day as my ovulation. I’m 5 days before I start my period and the past 2 days I have had cramping and sore breast. I normally don’t get that until a couple days before my period. This would be my 3rd kid if I am pregnant, but how soon could you take a dollar store test before it shows a positive?