Stepping back and looking what you are saying, you are saying that if you don't have the person who got you pregnant with you for the birth, you don't want the baby or yourself to live?
You think your DP/DH would prefer it if you were both dead if he can't be there? That he's more important in the birth process because he can hold your hand than having people trained for years to recognise fetal distress, deliver babies in less than ideal positionings, to recognise placental abruption, the cord around the neck, a cardiac arrest, to resuscitate a woman and/or baby, to provide emergency lifesaving surgery, oxygen, pain relief, blood transfusion, to protect against deaths from infection and haemorrhage, to not panic but to get baby out and safe and Mum alive and safe?
Seriously? Try telling him you were thinking of killing the baby and yourself in the most painful, traumatic and horrific manner possible because he might not be able to hold your hand, whether for a general 'no birth partners' ruling (unlikely) or if he gets ill in the meantime.
See what he says.
I'm willing to bet it isn't 'No you're right. Come on, I'll drive you to the nearest railway bridge now before the curfew kicks in. Nice knowing you'.