had sex April 23rd. may 5th was my scheduled period. it came on time 7 whole days clotting etc.. I havent had sex since then. I ovulated April 21st. today is may 26th and I took a first response test earlier today and the second line appeared white within 2 mins... I'm confused... there's no pink in the line, but it appeared within the time frame & this was the first response test... mind you that I had a full 7 day period with clots.. someone please help.