what's going on?

Penny
Today is day 10 since unprotected sex. Idk when/if I ovulated! 
Today was a crazy day all together and by about 11:30 I started spotting...only when I wipe though. It was pink/blush colored at first...as the day progressed it looks more like clear mucus mixed with a few droplets of blood! 
Imagine an egg, the clear part...adding some red food coloring (just a drop) and using a tooth pick to like mix it around but not blend it...that matches look and consistency! 
 ...then I developed a headache, grew extremely tired...and slept for 3 hours! 
Woke up still sleepy, and a little crampy, and my belly just feels so strange! 
So...implantation?? Starting my period?? What's up?! 
Update1: it's 2:15 am, I can't sleep, ofcourse...I tried to check my cervix, it's really high up there, I can't even reach it! But then again I have short fingers lol 
Normally when I'm starting my period it's super low and open...but I can't even touch it right now...