Hi, We do it just twice believe it or not. One is 2 days before I think I'll OV and the next is the day before. I'm 'shooting' for a girl, so we don't bd on the day of OV (as the boy spermies swim faster but the girl spermies live longer). Worked for both my daughters. But boy it's hard to not do one last bd, just to be 'sure' when that temperature spikes!
All the other bd's are just for fun, and with 2 kids, 2 full time jobs, and a dissertation, that just ain't much!!