Mily I'm so sorry if this turns out to be boy #3. I hate that you are so upset and I've been reading along and trying to think of something remotely useful to say. It must be so hard but I do understand why you tried naturally and hoped it would work out. I hope this boy turns out to be something amazing and there is a reason for all of this. HT will be there for you when it's the right time. I had my boy then started stimming 8 months later. Big hugs to you. You will see lots of developments and learn lots more about HT in the interim.
Oh and Dreamofpink add me to the list of ppl who are very happy to hear that about Mathilde. Please pass on my regards! Congratulations to you too! Very happy for you x