Hoping for a fast delivery!

Just had my check up. 4 cm- dr debated sending me to hospital now. Decided to let me go home but strict instructions to go in if contractions were 6 minutes apart (instead of regular 4-5). She even told me to bring my other son (21 months) with me to the hospital when they get to 6 minutes because she thinks it will go very quickly. Doesn't want me waiting at home for my babysitter to arrive.  Have been contracting on and off all week, but every time I think a pattern has developed and tried to time them, they die out. Let's hope this weekend brings on the active labor and I get to meet my new little man or lady!