The contractions started at intervals of 7 minutes, the doctor said to…

The contractions started at intervals of 7 minutes, the doctor said to come when there's a 5-minute interval or whenever you feel like it, and I'm feeling fine. The pain during contractions is unreal and subsides after each one, I almost go for a walk every little bit after each contraction. When should I go to the maternity ward?! After the first normal contraction, I took a shower and dried myself thoroughly about 40 minutes later, my underwear was wet but clean, is that what they call water leakage?