HELP !!

Abbie

So on about July 20th I had sex and then I got my period on August 5th. I got put on Nexplanon around August 15 and had an HCG test and it care back negative. But I don’t know if it was too soon or not. I then missed my period in October and November, but then I had it on New Years eve and then got it 3 times in January, which was very heavy. And then I had it once last month but not this month yet. Could I be pregnant ?