leaking nipples

sooo i’ll be 23 weeks tomorrow and my nipples just leaked for the first time 😂 i was actually reading birth stories when it happened and my shirt felt wet so i looked down and one of my nipples had leaked and got my shirt wet lmaoo, this is my first baby and pregnancy so i didn’t know what to do besides laugh 😂 how often does it happen and is there a way to like not have it be obvious if i we’re out in public or something??