Beer craving?!

Before I got pregnant I maybe drank a beer or two once every two weeks. I'm not an alcoholic, and I've never been drunk. Alcohol gives me headaches most the time. It's just not a big deal to me. Also, when I was pregnant with my now almost 2 year old son, the thought of beer or any other alcohol made me nauseous. HOWEVER, I'm currently 15 weeks pregnant and I crave beer like crazy. My fiancé and I are currently at an outdoor event and hardly anyone has any beer, but he opened his beer like 5ft behind me and I could smell it and it smells AMAZING. It's horrible. I'm thinking of finding and drinking some non-alcoholic beer because the smell and flavor drive me crazy! Thoughts? Also going through this?