Chemical pregnancy and CM

So on the 12 of October I got my nexplanon out 3 days after that had unprotected sex okay so than on the 25 of october took a test was pregnant went to doctor levels was only a 5 so I had to come back on the 31st and retest again (blood test) so between than we had sex again I believe on the 29 and 30 can’t remember so went back on 31st said my levels went down. . So 3 days ago from today i creamy discharge and yesterday it went from creamy to milky looking and today still milky but a little clear with mild smell to it and body knows what this could mean !?