As the mother of the baby, Luo Lixi definitely had the right to know about this matter but he hesitated. Sheng Ruming didn't want to see her more upset if by any chance the baby couldn't survive.
Thus after knowing his intentions, Sheng Haotin told him it was better to let everybody know after one month passed because the other doctors said if the baby survived 3 weeks without any hurdle, then the fetus would be out of danger.
Sheng Haotin was the grandfather and naturally, he was also worried for his little grandchild. Also knowing that Wei Airan was crazy about getting a little one as soon as possible, he couldn't let anything happen to it either.
Also, those researchers and doctors from the capital city were still present in the Ming city and Sheng Ruming was hopeful that they would soon find out the cure for Luo Lixi. He wanted a complete cure for the fatal drug, not any temporary measure like injecting a bunch of liquids in her body every day!