Hi. I'm trying to get pregnant and have regular periods lasting 28 days. The lh test confirmed the ovulation, I' m 3 days late, but the pregnancy test was negative.I took it when I was one day late, in the afternoon, and the producer statet it could detect 4 days before the period. Is it still possible that I am pregnant? I am very stressed, but I guess I have to get a period if ovulate.Thank you, Martina