So I'm on a birthcontrol pills called lutera for about two months now, the first month I took I had some spottings two weeks before my period. And on my second month it happened again, but this time I didn't get my period. So I buy sone pregnancy test at dollar store called assured, it came out positive 2 times then just to make sure I bought another one from walgreens which is the clearblue pregnancy test but it came out negative. Now I'm so confused I don't know if I'm pregnant or not. Any suggestions or any experience like mine?