42 weeks isn't too bad but if they want you to go at all beyond that more than just one day I'd switch. It can be really dangerous! Just as bad as if a baby were born too soon. There are risks.
Be careful going more than a week over your DD. If your placenta gets too old (sometimes 2weeks after DD) it starts to calcify. Also your baby is more likely to pass a bowel movement in utero and breath it in. Happened to my brother and he almost died and still gets bronchitis and pneumonia each year because of the lung damage from birth. Not to mention he was 11lbs 12oz!!! OUCH!
You got married on my second sons birthday!