When's the earliest you can feel prego symptoms before a positive test and can anyone tell me what's good time to test if I'm due around the 19 th for AF.

Amy • Mother of 3 Beautiful Children, 1 step daughter and My Angel Baby I miscarried in Feb 2015!
We bd on the 1st and the 4th on my fertile days but not sure when I will feel anything and when I should test especially if I have cyst on ovary.