Spotting & missed period

Heyyyy ladies!!!!!! So, I was suppose to start my period yesterday. I've had cramping like I'm going to start & very very faint spotting.. I can't tell if I'm stressing myself out or what's going on! I took 2 pregnancy tests; both negative.. But my question is: When you found out you were pregnant did you have period cramps with no period? THANKS SO MUCH EVERYONE!!! Have a fab day! ?