I had unprotected sex. After that periods wasn't proper. Like for first day less bleeding. Second day no bleeding. Third and fourth and fifth day full bleeding. After a week I took the test at morning 11 o'clock which was negative. All this was in March. In March I dint have any sex. So April periods flow was ok. Blood was proper dark red. Had few clots also. And on expected date and for five days. Any signs of pregnancy?? Shall I take the test again?