I don't know for certain, but it wouldn't surprise me if she didn't seek help from a doctor until last month. (mindbodygreen.com)
If you begin to feel very depressed or anxious, or have thoughts about harming yourself or your baby, get help from your doctor immediately. (kidshealth.org)
As with most aspects of pregnancy and childbirth, this is a choice that can be best made with help from a doctor who is familiar with your own situation and health background. (romper.com)