Yes, you can. However, the ones that have germinated might be too fragile to survive a transplant now. If there are any seeds which have not sprouted, make sure the are dry and set them aside until spring to plant then. You could try planting some now to see what happens, a little experiment.

Every fall I let my pumpkins decompose in the garden, and in the spring there are hundreds of pumpkin plants. I let one live to give me a few pumpkins.