(pics below are tmi)

my period is three days late and it's usually on time or just a day or two early. well today I had white milky discharge and then a tiny bit of blood when I wiped. usually when I get my period it's way more blood than what I had on the first day. I've also been slightly motion sick and cigarettes make me want to puke even though I've been an avid smoker for 5 years. any ideas? I'm planning to test tomorrow if the blood doesn't get worse but I wanted to see if anyone else has experienced something similar. thanks!