My DD did the same, but I had worked on a quilt, wasn't sure what I was going to do with it, they got married late April, and I got the quilt completed in time for christmas that year. It was a mystery quilt, and 3" half triangle squares. But it was done for Christmas.
They didn't ask for help because he was the only son, and the mom did everything, so I basically showed up. I was relaxed and decided not to be worried about how much I didn't do. They were told to ask and I would of been more than happy to assist.