Husband can’t perform 😩

So I’m a bit upset right now as I’ve had a sweep today and midwife told me to have sex tonight to try and get things going.... and hubby just can’t come... it’s so uncomfortable for me, but obviously I don’t let him know that... and he tries but he just can’t... I feel really upset, and feel like I’m never going to go into labour. This keeps happening, he says he’s still attracted to me and I believe he is... it’s probably a bit more pressure than normal... but I have always said to him it’s not a big deal, and we don’t have to if he’s not in the mood etc, never make him feel bad for it as I k ow he can’t help it.... but I feel really frustrated as I just want this baby out of me. Has anyone else had this problem?