What did you make?
1) while I've had some brews get some foam on top, I haven't been at risk of a boil over (yet). It's lurking, though, so always be ready to get it off the heat quickly. I can't imagine you'd want to deal with that.
2) time is only a guideline. That being said, I tend to bottle after 4 weeks in primary. As mentioned above, consider skipping the secondary unless you're adding spice, flavoring, etc. It's debated but has been found to be unnecessary for us home brewers.