Reasons my doctor could extend recovery time after birth

Cristina

I live in CA and receive 6 weeks of disability leave to recover from giving birth. We are eligible to receive up to 17 weeks, however, there needs to be a medical/mental health (such a PPD) for doctors to recommend more than 6 weeks. I am aware we get 12 weeks FMLA but I’m only asking about disability recovery time.

I am want to be as prepared as possible to advocate for myself if I need my recovery time to be extended. What are some reasons a doctor would allow a longer recovery time?