How do I know if I'm asexual?

I love my husband and occasionally I enjoy sex but most of the time I just prefer to cuddle. If it was up to me I would maybe have sex 3 times a month.

Could I be asexual? Could asexual people still have sex and not enjoy it? We don't have marital problems besides him liking sex and me... only sometimes.

I am attracted to both men and women but I just don't express that attraction through wanting sex. Although occasionally I do feel like I want sex.

Update: I want to mention that many times I just hate having sex. It annoys me. And cum and CM both gross me out. I'm in my 30s. I've been like this as long as I can remember. Do other people feel this way or is it only me?