How to take time off to protect the fetus?

My wife is a physician, 30 years old, pregnant for 3 months, twins, and the type of fetus belongs to the baby (I won't go into details, it's very, very hard to find anyway! ! )。 I used to feel dizzy, weak and want to vomit every day. I took maternity leave for two months before, but now the dean disagrees and strongly demands to go to work. The post after work is the busiest pediatric clinic in internal medicine. After a few days, I feel too busy to eat, and I can't eat at noon (the canteen is closed after work), so I have to bring my own food every day. I still have cold symptoms today (it may be contagious, it may be too tired and my resistance may be reduced). I want to take continuous maternity leave now, and I'm worried 1: The dean only recognizes the certificate from our hospital, but my wife has no obvious popularity and probably won't take it. Worry 2: If the dean refuses to agree, if he is forced not to go to work, he is afraid that he will be considered absenteeism and dismissed. The questions are as follows: Question 1: Can I ask for maternity leave with the certificate from a tertiary hospital outside? Question 2: Can we negotiate to pay only the basic salary, or even pay no salary to pay insurance, and keep the post, which is similar to leaving the job without pay? The hospital replied after the initial consultation: you can't leave your job without pay. If there is a certificate from a big hospital outside, the hospital can discuss whether to allow a vacation. But the proof must have obvious symptoms, such as uterine fibroids can take a month off, in short, you can't fool the hospital with a holiday. By analyzing the hospital's reply, it is open in theory, but it actually sets a higher threshold for us. Because our situation is really bad, but dizziness and weakness are not obvious redness. The hospital can say that you are pretending to be sick on purpose. We want to ask for leave, mainly worried that if we have a miscarriage or catch a cold because of such high-intensity work, it will be an irreparable loss. Some units are willing to let employees take maternity leave as long as they are willing to take only 70% of their wages without bonuses. However, this hospital has set this condition, and it is actually difficult to get a certificate in operation. Even if the certificate is issued, the hospital may not take time off for insufficient reasons. And even if it is a leave of absence, it will be approved for a week at most. Based on the above situation, we are also embarrassed. Either resign voluntarily, or submit a leave application and hospital certificate unilaterally, and rest at home directly regardless of approval or not. So, do lawyers have any better suggestions?