Pregnancies

So many of my friends are pregnant at the moment. Steph is due on the 2nd May, so not long to go now. And I've recently found out that Emma is expecting, due in September (her 12 week scan is on her blog), Vicki is expectng her second, also in September, and Caroline sent me an e-mail yesterday announcing she is due in September too!!! Do you think it's something in the water? Or is it more likely too much fun and frolics at Christmas...