i had a friend who went through surgery, fertility treatments, back and forth to the doctor for 2 years and all she wanted was to get pregnant and have a baby but nothing.
when she lost all hope and decided to give up she instantly got pregnant on her own and now she has a son (i remember her telling me that month she was giving up and focusing on herself, she started the month off with drinking a bottle of wine and smoking a pack of cigarettes and she started going back to the gym hardcore and going to the tanning salon - all things that she felt were reckless and avoided while trying)
i always told her that it would happen and it did. you hear so many stories like that.