I had unprotected sex on 26th July my periods are very regular but this time its been 5days I missed my period and after 5days first day I had 1 drop of dark brown discharge. And then today after waking up i had 1 drop of discharge. From evening I'm having dark brown discharge with light red watery discharge! I did my Beta HCG test its <2.0 m IU/ml. Can you help by telling if I'm pregnant?