Calculating the duration of post-natal bleeding in the case of twins

Question : If she gives birth to twins, meaning two children.

Answer : The beginning and end of the post-natal bleeding are determined by the first one. Even if there is a period between them, such as two or three days, the start of the post-natal bleeding is from the first one. For example, if she gave birth to the first twin on the first day of the month and the second twin on the tenth day of the month, how much time remains? You want to know, you want to know, you want to know, you want to know. She has thirty days remaining in the duration of post-natal bleeding, and the days before the second one are counted as part of the post-natal bleeding, because the start of the post-natal bleeding is from the first one. Now, if she gave birth to the first twin on the first day of the month and the second twin on the twelfth day of the second month, does she have no post-natal bleeding for the second one, is that right?
She has no post-natal bleeding for the second one. Why? It is said that the post-natal bleeding starts from the first one. The forty days are the limit; the blood of post-natal bleeding cannot exceed forty days. Is the pregnancy here singular or multiple? The pregnancy is singular, but the fetuses are multiple, and the pregnancy is singular. If the pregnancy is singular and the post-natal bleeding is singular, then the post-natal bleeding does not exceed forty days. However, the stronger opinion is that if blood reappears for the second one, she remains in a state of post-natal bleeding.
We say: This woman gave birth and post-natal bleeding came to her. We say: Is this blood of no account? The correct view is that as long as the blood continues, it is ruled to be post-natal bleeding, even if it started with the second one.