Discharge

So today my period is suppose to arrive and it hasnt yet. Im getting a watery discharge where it soaked through my pants. I looked it up and someone says from the time you get the watery discharge if i count back 12 or 14 days and it falls on the period of you ovulating then most likely you arent pregnant. I thoughtbi had some symptoms but could have been me just wating baby #1 so bad. Should i count myself out or no? I dont want to get my hopes up. Baby dust to all.