Is it a phase or a problem?

I was wondering if anyone else has had this in their marriage? My husband and I have been married for a year. Lately we don't want to have sex. It's not that we have lost interest in each other, we are just more into playing games together or watching TV together or something. We always talk about how we are gonna have sex, but never do. Also when we start making out and try to start having sex it always just ends up in us play fighting. It's been a long time since we've had sex. Is this normal or a phase or is it something that may lead to issues down the road?