Oh dear, I'm sorry but that's not a good sign at all. There could have been a parasite or some disease on the little cat you brought in. There should be no liquid leaking from the chrysalis at all.
To avoid this in the future, put your plant outside and wait for a female Monarch to lay eggs on it. I take the leaf with the egg on it and put it in a baggie with a barely damp paper towel. It hatches in about 4 days and you have a very, very tiny cat. Then you can raise it inside and avoid the terrors of the outside world. I have successfully raised hundreds of Monarchs over the years this way.
Sorry that your first time out was a bad one, but once you start raising cats from eggs, you'll have much better luck.
Monarch Waystation #2116
Shelter from the Storm
Green Bay, Wisconsin