All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
Jurists stated that if a woman is sick and in need of care and there is fear for her safety, she has the right to have her husband stay with her in this case. The Shaafi‘i scholar Shaykhul-Islam Zakariyya Al-Ansaari said in Asna Al-Mataalib: “If she fell sick or went into labor and has no one to take care of her, then he may nurse her in the first case (sickness) and stay overnight with her in the second case (labor) for as many nights as needed provided that he makes up for his other wives when she recovers.” [End of quote]
Thus, you come to know that you have the right to request that your husband stays with you if there is a need for that, and he has the right to spend the night with you even if his other wife does not approve provided that he makes up for those overnight stays for his other wife after the excuse ends. This is what is required by the enjoined justice and fulfillment of the rights of one’s wives over him.
Allah Knows best.