Hi there,

Firstly the ticking clock is a hard thing to ignore.

I really do believe that you need to look after your relationship first.
I haven't gone through IVF, but I have experienced M/C and raising three children and I have experienced the good and the bad that can come with these. Bringing a child into a relationship generally adds pressure, even to the most loving couple, tired, anxious , sometimes isolated and putting high expectations on ourselves and our partners all lead to eruptions.

Hopefully you will be able to work through things with your partner goodluck.