How often do you bd when ttc?

My dp would go crazy, on the bd front,  if we lived apart, I'm out of action due to an ectopic and he is already like a dog without a bone, (no pun intented haha!).

I find both times we have concieved is when we've enjoyed bd and not timed it. We did only do it one time in my fertile period with the last pregancy, which is amazing considering how long it took to concieve again, i think we were properly doing it too much!