Wondering what is going on?

For a few weeks I have been sleeping nonstop. I usually wake up at 9 and I wake up at noon or one. I never take naps but this last weekend I was at disney and was in my room napping in the afternoons. I did not think much of it. Now, my period is two days late. I usually get it like clockwork. Every month and the same day and time. Could I be pregnant? Or is this just all normal. I just put two and two together about all of this