Sorry ladies, really odd question lol

What would be considered normal discharge 2 days before your period is due.? We've been TTC for a month, but I took several tests and they've all been negative so I am 100% expecting my period to arrive tomorrow or the following day as scheduled. For the past 4 or 5 days, I have had no discharge. But today, I have egg white stretchy discharge again. I've also had mild cramping and been irrationally emotional along with some pretty swollen, sore perky tatas lol I know these are all both pregnancy and PMS symptoms; but like I've said I do believe it's PMS. But until we started TTC, I never really paid attention to CM or anything like that so I'm wondering what's normal when it comes to the days leading up to AF?? Thanks Ladies!