What day should i count as my miscarriage?

Okay so on November 16th i started bleeding slightly heavy for four days, and then on 11/20 i found out i was pregnant so i got blood draw and then again two days later and my hCG doubled. On 11/29 i spotted lightly brown and found out 12/2 my hCG level went down to 16. So should i count November 16th as my miscarriage day... ?