I start my period in 7 days I took a clear blue pregnancy test today after I woke up and its negative...I have been showing signs of being pregnant from nipples being sensitive, lower abdominal pain, back aches knees hurting, bloating, clear liquid discharge, flutters in my stomach which is air bubbles, insomnia with these signs could I be pregnant and just took the test early or is there something extremely wrong please help??????!!!