When’s my Due Date?

Last period started on 9/28/18 and lasted 7 days, 10/4/18. Just started bleeding again 6 days later, 10/10/18. Peed on a stick and it said pregnant. Since I was bleeding I went in to get HCG levels checked to see if we were miscarrying. (I’ve miscarried before each of my two children.) HCG came back at 86 which means 5 weeks pregnant but my period just ended a week ago. Does not even make sense...

We go again today to get HCG levels tested to see how much it’s going up.

(All bleeding and cramping has stopped and I’m feeling all the pregnancy hormones!)

Anyone else have insights?