@Billie2 I've been looking at my DD a lot lately and feel like it's such a miracle that I got her but also had a trouble free pregnancy, quick and easy labour with her too. I'm guessing that if both of our FSs have sent us to get tested despite us already having a child then it must be possible for these things to develop and not something you are born with. My FS did warn me that there will be lots of blood taken. I'm not to eat breakfast before going so she said to have lots of water. Good luck for Wednesday!
@Evelynmoo geez, I'm so sorry you have to go through all that!! I could only imagine how I'd be feeling in your shoes, I think I'd be losing a bit of faith in it all. It's so frustrating that the nurse was avoiding your questions so good on you for sending an email. I know I got sick of having all those bts when I had that long cycle and my trip was only a third of yours!
Its strange to hear that some don't think there's a link between fertility and immunity, I've seen it come up a lot on forums on here and it makes sense that our bodies could fight off foreign cells.