Oh my.
So how does this situation look to you guys? Is there any danger to mother's health in this moment?
I would say it is for some time now. I mean, just read your own account of what just happened to answer the question.
We, sitting on a computer somewhere on the world, can't tell if she's in imidiate danger or not.
A NOTE: Guys, we (Me, my mom and my sister) are NOT keeping them for breeding purposes.
If you would keep them for breeding purposes, you quite likely wouldn't do it that way. Wasting her isn't sustainable, and brings not the best results.
They breed - like rabbits. There's no "heat", there are times when they are more eager, but they will use any chance they get anytime (unless you want then to breed, but that's another story). It just takes 10 seconds. Rabbits are induced ovulators, so every single time he gets her it is a hit, there is no recreational sex for rabbits, it's pregnancy, every single time.
If you put them together it will happen again.
We tried keeping the parents separate but the male goes super crazy and mad if we keep them separate for too many days. The mother behaves strangely too after a while. Not being able to see that we keep them together and only separate them when the male is in heat. But she gets impregnated out of my knowledge every time. This time I'll make sure to keep them separate as much as possible and only let them meet under constant Supervision making sure that the male never mounts her. If he does, he's going back in his cage.
Rabbits are still very close to their wild anchestors, actually, they are practically the same. It's our responsibility to take care that their insincts and biology are not messed up or out of control due to us keeping them as pets or lifestock.
Putting the buck to the doe is like putting a fox in the chicken coop, and expecting that nothing will happen. In the wild, chicken (or their relatives) have strageties to deal with foxes, doesn't work in a coop.
You are projecting some very human viewpoints and feelings on them, I would say.
Figurativly showing him the carrot and plucking him out when he sniffs it - he can't understand that, he is an animal. Poor boy, he'll never have a chance to settle down a bit, hormones brought to a boil again and again . Keep them seperated at least for 3 months or half a year before saying that they act crazy.
I know, it's so cute how well a buck and a pregnant doe get along, but that comes with a cost. It doesn't work well to let our romantic delusions dictate how to keep animals.
Good luck that your doe pulls through this now.