I'm not doing the 20 day challenge, but I thought some of your "how I found out" stories were pretty interesting so I wanted to share mine! I took a test 2 days after my Missed period and got a negative. I had zero symptoms and figured it was just late & I'd wait it out. 4 days later I gave in and took another test... Which was also NEGATIVE! Both myself and my bf figured there's no way I was pregnant (since this has happened many times before, my period is an elusive bitch) and for the first time we were both disappointed. We hadn't been "trying" but were both ready. At 13 days late I finally took one more test and it was + :) we were both in such complete shock. We went up to our room and just talked about it for hours. 4 more tests later and we had confirmed our little angel was on the way! We still talk about that day and how cool it was.