Hi ya
sending u and your partner BIG HUGS
can relate to this so well, just recently Miscarried on our third IVF attempt. Like you I invested in it heavily this time, Felt that I had definately become pregnant and somehow, although it took, something went wrong. Blamed myself, did i lift something too heavy, I should have done this, I shouldnt have done that...
But I know i have to get over this, and prepare to try again. Hard not to attach emotionally, esp if you feel pregnant. I think usually you know. When I miscarried with our first pregnancy ( natural conception), I felt something was not right, weeks before we went for the 13 week scan, when we were told, and I'll never forget the words " this pregnancy isnt going anywhere". Devastation doesnt cover it. The ache was something I could not have imagined.
BUT, despite that, I have abeautiful baby boy from IVF, he is now 11 months, so keep going. Spoke to a woman the other day who had tried for 16 years, and finally had a baby boy, same age as my little guy. I told her i thought she was amazingly courageous.
find that strength, if it isnt there yet, it will come..

sending u love and hope
ceriberi