Mocha, You are right, it can happen right away. I removed my IUD in August, since I didn't had any period for 6 years because of the IUD, my doctor recommended me to wait for at least one cycle (so he can estimate the due date ...etc). I have been on pills since 14 yrs old, I thought maybe it would take a while to my body to re-adjust. So after honeymoon in September, AHR in October...me and hubby decided to try in November, and surprise surprise...we got it with 1 strike, I am a preggie now. The only inconvenience for now is I can't drink champagne/wine in the holiday season! If I knew it is this easy to get knocked up, I would've wait after the holidays. I know..I know...Like you said, we never know when it might happen.