Please help me

KkKk
Hi all, I don't know what to do! Me & my SO have been ttc for a year and a half now, I've just been referred to the fertility clinic (I have pcos & low progesterone) but SO hasnt been and had his sperm analysis yet, he keeps putting it off saying he's busy, got to much on at work etc etc. he seemed really up for it when we first started ttc, he took the time of work to come to scan, blood tests etc with me but can't even make time to make an appointment or call the doctor? I feel like he doesn't want a baby, and when I say this he gets angry says he does and he's busy that's all. Today when I asked him if he'd made an app yet he said no, and as a joke (I know it was wrong of me to say but I'm getting pissed off) & I turned and said, well I'll just use a donor instead, he then turned and said, well your the one with the problem it's not me, all you. Then left for work. I know I deserved as good as I got but I'm sick of this and there's no talking to him. I just don't know what to do. Sorry for rambling! 🌸💗