I'm currently 4 days late. The first day of my last cycle was 6/23/12 I average 29 days between cycles. I was supposed to start on 7/22/12. I took a test this morning and it said negative. I'm usually pretty regular with my period so for me to be 4 days is unusual. What's wrong? Also I have two kids and I didn't have any symptoms with either of those pregnancies.