#1 on Google=sales?

[Hammer]

Originally Posted by MRock

I just had another thought about my own question, maybe even answered it myself. Maybe the "searchers" from G are mostly women looking for medical pregnant pictures or photographers to capture their own pregnancy ... I wouldn't expect them to join if that is the case ...

That sounds plausible to me. You would have to check to see what keywords you're getting the traffic from and if, as you've guessed, they are searches for something related to pregnancy but not sex, then I'd say you have your answer.