Two days late, then two day period?

vi

Hubby and I are TTC and this month my period was really weird. I’ve never been late, but this time, my period was two days late. When it did come, it was HEAVY. Then, it stopped very abruptly after only two days.

WTF?

I always have two days heavy, two medium, and one light, in that order. I’m very regular.

Any ideas? Should I be worried?