Curious!

So about 3-4 days ago, I had watery discharge and I mean a lot! I had this discharge for about 2-3 days! Well yesterday morning I woke up with sore nipples! Ever since I had a miscarriage everything has changed and at first the only time I would have sore nipples was when I was ovulating but after a couple months that stopped! And now I never get tender nipples but I have them now! I had my period around the 17th of last month and I don't even know when I ovulated! And i believe my period should be between the 17th and 21st of this month but not so sure! Any suggestions?