Oh Edamame, I am so sorry for your loss. My step-dad was killed when a truck driver fell asleep and hit them head on. He and another passenger were killed, and another passenger lived but has severe brain damage. It is a devastating thing to come to terms with. I am so thankful your mom will be ok.
Your doctor is right, you need time to heal emotionally before IVF.
My thoughts and prayers are with you and your family. (((HUGS)))