Last week I took 4 tests. One Wednesday was positive, one digital blue negative that night. I took two more the next morning both positive. I had very light spotting this weekend, a very small amount of red blood when I wiped once, and a tiny bit of rusty brown the next time. Both very small. Now this afternoon I got 2 negative tests. Anyone experience this? Could I still be pregnant? I was getting my period regularly every 28 days and it would last for 3 days straight, normal flow. It has now been 35 days without period.