Supposed to start my cycle today and havent. I'm having a milky odorless discharge ( that does not itch or irratate me). I usually cramp and go thru horrible mood swings the week before my cycle but this time I'm not. I do have unprotected sex and am trying to get pregnant. I've taken three tests in the last week and all are negative. Who has any clue as to what is going on w this discharge and when should I test again??