thank you for your query.
You have obviously leaked out amniotic fluid
and you must immediately go to the ER.
Leaking carries with it risk of infection to the baby and to the uterus
At 5 cm dilatation and 90 % effacement, you are already in active labour.
Please do not stay at home any more, as you might deliver anytime, and even if the labour does not progress, with leaking you cannot stay at home , as there is risk to you and baby.