Help!!!

I had a cycle on December 16 of 2017..December 26th i used preseed.I ovulated January 1 through 7th. On January 11th through 13th I had light pink bleeding with severe cramps. (I thought that might have been implantation bleeding) however my period was supposed to be due yesterday..But all last week I had milky white discharge and since the last few weeks my appetite has increased..big time. I've tested twice already they come bk negative..im not sure if it's to early to test or what..plz help ladies.