Last time we were trying like mad, DTD 3x daily for the 3 days before OV, the day of OV and the one after, and we had a girl. This time we definitely didn't DTD in the 3 days before conception, and quite possibly 5 days, we weren't trying this was a surprise baby, and low and behold this is a boy - by swaying 'rules' both these babies should very strongly be the opposite of what we got!