Chattychar - if you did it last night and its a choice between tonight OR tomorrow then maybe go tomorrow for the
Thats what I did as I knew DH finds it hard to perform three nights in a row so I went day before and day after surge and it worked. All other 7 months ttc were day of and day before surge and I never caught that way.
However, if you think you can wangle a good performance today AND tomorrow then thats even better.
Talking about sex so many days in a row. If my husband does it 3 days in a row the amount comes out reduces a lot. Does that mean less sperm?