I had a period on Sept 12th. I ovulated around the 27th of September (no test, just that is when I had light cramping and heavy eggwhite discharge. October 10th I had medium cramping and so much clear liquidy discharge that I soaked three pairs of panties for two days in a row. Then I dried up and cramps went away. It is now October 19th. I have taken 4 pregnancy tests and all negative. Still no period. My question is: Why did I have all that discharge and cramping when my period was due but never had a period? Could I still be pregnant even with 4 negative tests?