My Ancient Daily Routine of Raising a Baby

18-Year-old Shen Nian'an had a car accident and traveled through time on her way to school. Traveled through time and became the concubine of the Prince's Mansion! She is also the prince's first woman. And it comes with a system, which indicates that the future prince will grow into a ruthless and decisive king, but will be childless throughout his life. Shen Nian'an's mission is to help the prince give birth to an heir and complete the task. This way she can return to her original world. Just when Shen Nian'an was sitting on the wedding bed with the prince, trembling nervously, she found that the prince was also trembling. What, it turns out that the current prince is just a little brat, so that would be easy to handle. Shen Nian Anxin is full of letters. Not long after, the system fell into deep thought when he saw that Shen Nian'an and the prince had become brothers. Shen Nian'an looked at himself being reborn again and again and fell into deep thought. But it's okay, who makes children so cute? It's more of a daily style, and more inclined to have and raise children. Don't really expect any kind of palace fight plot that a lazy author can write. If it's not a cool novel, it's just an ordinary life. There is no absolute bad guy, and the plot is naturally not exciting. The prince will have other women, after all, it is ancient times, but he will not engage in any kind of vitriol. Everyone likes to live a stable life. It's not a doting novel, the male protagonist is more like growing up with the female protagonist like a family member.