بسم الله الرحمن الرحيم
If your beard does not grow naturally, then you need not worry, some people have beard late. If your beard does not grow then there is no sin on you, so do not worry. If you wish, you may contact any dermatologist. Also read the below dua:
اللهم ارزقني على وجهي نوراً .
Allah knows Best!
Darul Uloom Deoband
This answer was collected from the official ifta website of Darul Uloom Deoband in India.