When I read the Quran from a mus'haf, I read it with a low whisper with my tongue slightly moving. Is this the correct voice volume and way to read Quran from a mus'haf? If not, then what is the correct way?

I am a woman who reads the Quran after Fajr prayer and/or after Dhuhr Prayer. I read the Quran in my room. I read the Quran to gain rewards from Allah. 

Thank you.