Im coming to this from a slightly different angle,my daughter and son in law are currently undergoing IVF and we have been thinking of booking a holiday, currently no baby on the horizon so Ive taken a chance and booked a spring break, in the hope that if they manage to conceive, the little one won't be due to put in an appearance until late summer . Obviously we will know before then whether or not she is falls pregnant, but if she does, I will probably still worry even though it wouldn't be due for a few months. Its a mum thing LOL