This is kind of a different topic, but whom ever is in this position should not have gotten pregnant knowing they are suicidal. Abortions are always an option as well, she should have considered this option when she first realized she was carrying a child, while unhappy with her life. But the plot always has a twist, the pregnancy might give her joy and she might find a purpose to live. Also, again, this is where family members, professionals, and friends get involved.
P.S.
I might sound mean or harsh, but none of it is to offend anyone.