Pregnancy after miscarriage

So I found out I was pregnant December 26, 2019. I started bleeding December 28, 2019 I went to the hospital and they checked my HCG levels. They were 119 and I was 4+6, they had me come in 2 days later December 30, 2019 to check my levels they rose to 212 and I was 5+1 and was still bleeding. Later that day I started bleeding badly and having terrible cramps so I went back to the hospital they did another blood test around 12:45am on December 31, 2019 and my levels dropped from 212 to 166. They told me to go back in 2 days again. January 2, 2020 I got my blood drawn and my HCG levels were 16 at this point they confirmed I was going thru a miscarriage. They wanted me to come back for another test 2 days later but I didn’t feel like putting myself through that if it wasn’t needed. January 3, 2020 I took an at home pregnancy test, it was negative and I was still bleeding. January 4, 2020 the bleeding turned into spotting and the cramping and clotting was gone. January 5, 2020 I completely stopped bleeding. So my fiancé and I BD everyday to every other day until the end of my predicted fertile window. I started having a shortness in breath, some constipation, some pulling feelings and severe nausea since 5 dpo. My predicted period is in 5 days. Is it too early to take a test?? is it possible I conceived right after miscarriage?? I just feel like I did last month but I didn’t want to be discouraged. What should I do? Please help