Hi! I am currently 5 days late and getting negative tests. My cycles are always regular at 24 days! I have been having cramps which come and go for the last week, as well as lower back ache. My nipples have occasionally been tingly. On Friday (6th) I had sharp shooting pain in my lower region which went as quickly as it arrived, and yesterday I had a browny discharge when I wiped...... but only once in the morning! Cramps again this morning, very faint but ease when I change position. I'm lost! Going crackers! Anyone else?! 