cramps for 5 days before period this cycle?!??

Ca
So my period just started but I've been having cramps for 5 days! I always get them for 1 day right before af, and I've never had them last that long before af starts. I was also a week late for my period. I was thinking I was pregnant, since I'm almost always a regular 28-30 day cycle and this cycle was 35 days! I should also mention that I'm 27 and have been menstruating since I was 11, so I have 16 years experience with my cycle and def know when it's acting weird. Anybody have any clue why I would have had cramps that long before af? Could I have been pregnant and just had a super early mc?