He called me "babe" for the first time (we've been dating for four months)?

He's my first boyfriend, I'm currently 14(turned 14 yesterday). Anyways, 2 days ago my boyfriend called me "babe". I got a very weird feeling in my stomach and still get it everytime I think about it (he called me babe over text he was like"I love you babe"). Is it normal to get that weird unexplainable feeling? What does it mean?

Thank you 😃
He called me "babe" for the first time (we've been dating for four months)?
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