My mother in law is driving me insane!!!!

Anyone else having their mother's and/or mother in law's driving them insane? This is my second pregnancy, and I'm due any day with twins (boy and girl)! How she is driving me insane is by calling just about every hour to see if I've gone into labor, and stopping by to visit at least once throughout the day. I appreciate the care and love, but this is getting too much. I can just about time her calls right now! She lives less than 15 minutes away from me and my husband and I have both promised several times that we'll call her or her husband (my husband's step dad) when it's time. We also promised I wouldn't drive myself to the hospital, even though it's a 3-5 minute drive from my house.