False labor/prelabor?

Phoebe

I started having mild contractions yesterday at around 2 pm lasting 1 minute, 5-6 minutes apart. This went on until 7, they started getting closer to 3.5 minutes apart.

I woke up at 12:30 am with much more painful and intense contractions 2-3 minutes apart and a minute long. This lasted for several hours but I fell back asleep.

Now this morning they're totally gone!! What gives?

I was 2 cm dilated several days ago but haven't been checked since.