Thanks everyone for your replies, I'm about to go into another cycle & I have a choice of doing a short cycle now & freezing everything or doing a long cycle & having 'fresh' embryos to test (due to when the pgd date is). I'm not sure what is best & I'm worried I'll lose quite a few to thaw & pgd is such a numbers game i want as many to test as i can, so I'm not sure what to do