Im catholic ,and so is my whole family but my brother.
I go to catholic church with my mom often, but also go to christian church with my boyfriends family too.
is it okay to have two religions?
Catholicism and Protestantism are both parts of Christianity. You are not a member of two religions, just two different groups within the same religion.
Theoretically, you could be a member of two religions as long as those two religions allowed the other, but then that might make both one religion in truth.