When I was last at my OBGYN's office, I informed my doctor (specialist/surgeon/only person I trust with a knife in my insides) of mine and my husband's intentions to start trying for another baby. He told me, "If you're not knocked up in 6 months, come back and see us." (Yeah, my old doctor was pretty casual.)
Well, here we are, 6 months, hundreds of temperature readings, pills taken, and dozens of sticks peed on later and, big surprise, I'm not pregnant.