Heeeelp

So I’ve always known I’ve liked both guys & girls, but I’ve only drunkly told 3 people. I’m in a relationship with a guy (& I love him so much don’t get me wrong) but kinda wanna experience sex with a girl to know if I’m just curious or actually bi. I’ve made out with a few girls before & it has just made me more curious but I’m scared to tell my family as they are extremely religious. What do I do? Suppress what I’m feeling? Tell my bf just so he’s aware? I’m just so confused