I know!!! I discovered this recently when sorting travel insurance for a work trip. I had just finished an assisted (puregon) cycle and was interested in if I would be covered. I was so angry when I realised that if I did get a bfp I wouldn't be covered. As if infertility isn't a kick in the guts enough!
I guess when I finally do fall there will be no more overseas travel for me. I had planned to do a trip up until 20 weeks. I wish I new their rational behind such a policy.