My period is always on time. This month is was a week late and then I only had it for 2 days when it usually lasts 6 days. I took two pregnancy tests (not with the morning pee) before getting it and they were negative. Last day I had it was Thursday did not bleed since at all and today(sunday) I woke up with this on the panty liner. Could it still be pregnancy or should I give my doctor a call?