@Summer I'm a bit gobsmacked by your DP's attitude and feel so angry and hurt on your behalf. Have you guys had some couples counseling around this? Does he realise the implications for the rest of your lives?!? He is the same age as my DH and whilst our FS#1 made it clear he thought it was my fault, FS#2 rapidly identified notable MFI and 46 yo sperm ain't that of a 30 yo. I have a cousin who is 44 and after a couple of months TTC succeeded, most likely thanks to her partner's 34 yo sperm. Physical contributions aside, no relationship is immune to the stresses of IVF and I'd wonder if he realizes that? Do you want a child with somebody who is this disinterested and from your previous posts I think somebody who has significant issues with his ex and their child? Personally I'd be tempted to leave, take 1/2 in a property settlement and have a donor bub! (Might be the last of my 'roid rage!) I would seriously be wanting some counseling as regardless of the decisions made, this will impact you guys longer term and they'll be resentments which won't make for a happy future for you guys either way. If you do go ahead with having a bub, I'd wonder how his attitudes will be reflected in child rearing, as past behaviour is the best predictor of future behaviour. Will you effectively be a single mum and are you cool with that? Sorry this is very blunt, but I'm just outraged for you.