Anak, 28 hours ng sakit with contractions every 5-6 minutes at may discharge, please go to the hospital or call your OB right now, hindi na dapat maghintay pa. This needs a doctor to check you properly in person, hindi lang phone advice.
I know it's scary, lalo na first time, pero ang labor natin ay super unpredictable, minsan mabilis, minsan matagal, at minsan may complications na kailangan ng expert eye lang makikita. One of my mum friends had similar situation and turned out kailangan ng intervention para sa safety ng baby. Your OB needs to see you again, check baby's heartbeat, and guide you properly kung talagang labor na or kung may iba.
Don't wait for it to get worse, go now, mama. You and baby need to be monitored. Dadalhan ka namin ng prayers.