Believe me ANYTHING is POSSIBLE.. We tried for 18 months with our last DD, then we decided that we had been lucky enough and that DH had to get a Vas done, I had had my AF back for about 3 months, (very irregular) and the night before DH went in for his op we DTD just in case it never worked again?? I was'nt tracking but it had been ages since my last AF, did'nt even give it a second thougth until I started to feel a bit of MS and yep preg again, one lucky bubs me reckons.
It always happens when you least expect it, and when you are'nt trying.