I am very confused as to what is happening with my body. Periods been up the wall but felt weird. Did a first response test / very strong positive. Then a Clearblue digital to try and establish dates and it came back 2-3 weeks pregnant. This was on Thursday. Had no bleeding or cramps but doctor scanned me today - said they had a very good view of uterus and nothing there. Did two strip tests at the doctors and both came up negative. Anyone ideas?!