Gender???

Idk what gender my beardie is! I’ve been using he/him pronouns for him but I’m not entirely sure. He kinda acts how I’ve seen males act but I can’t tell which why his "hemipenal bulges” is going lol. Hes still young but a few months old now so I feel like I should be able to tell now but this is my first time owning a beardie so please help!! Thank you!