Spotting???

So this morning I started bleeding and my period was supposed to start my period 2 days ago so I'm thinking my period started I take shower put my pad on pack my period bag regular routine when my period start so I was making runs all day today with my mom in law and boyfriend so I finally get to the house fall asleep because I was exhausted I wake up it's night so I panicked bc I usually change my pads more than once and I had the same pad on from this morning I go to bathroom nothing in my pad I wipe nothing on the tissue then I tell my boyfriend like this never happened before so u want to have sex put a condom on see if I bleed or something we do that nothing I just want to know wtf is going on this never happened before