Please help! I need your advice ladies.

Margarita
5 months ago, I was in a car accident. I suffered severe brain trauma,many fractures and lacerations. 
I am almost fully recovered and thankfully life is starting to return to normal. 
My so and I have began talking about getting married and trying for a baby once things have settled down!
However, I have not gotten my periods since before this car accident and I'm getting nervous it will never come back ! My doctors can't give me much of an explanation because they aren't sure themselves! 
Has anyone heard of a menstrual cycle being delayed because of physical trauma? If so, how can I get my period to come back?! (Never thought I'd ask that question ) 
*ps my periods were always every 28 days. 
Please help. 🙏🏽