Discharge as early pregnancy sign??

I thought I was about to start my period.. Was supposed to start four days ago but I figured it was stress (I'm under a lot of it!) My period just became regular the last two months due to metformin. Anyway, for the last two days, every time I wipe, there is an excessive amount of clear, almost white odorless discharge. It's not stringy like fertile discharge and no other issues so I don't believe it has anything to do with an infection. I've also been more tired and a little bloated but I figured PMS.. just never had discharge that much before...