Oh Powelly hun, I am so sorry. It is such a rollercoaster to such extremes.
Hunny a miscarriage is different for everyone depending on the hormone levels, when the embryo died and your own cycles. You will no doubt have you very own experience through this which will no doubt increase your feelings of anxiety and sadness, but remember you will find understanding in here more than anywhere else. You are not alone so don't ever feel lonely as much as this journey can have other ideas.
My thoughts on when you start to bleed are greatly influenced on my experience alone. I believe the body will when it is ready and that is different for us all, physically, emotionally and spiritually. I know that our DD was not a miscarriage however we waited 6 weeks for her to be born after she died. I waited for my body to be ready to release her and let go of the pregnancy. Sometimes it will take a while for your body to catch up to what is happening...however it sound like it is not far for you as it seems the tests and levels are dropping off quite quickly. You will hold onto those hormones for a while. VERY generally the earlier on, the quicker your body will follow suit...not always the case but it shouldn't take too long. Our miscarriage before DD was a bit strange as i was having it before i knew i was pregnant. I was having positive tests after I lost the pregnancy too. It is so confusing isn't it. I didn't know if i was coming or going. I was so anxious over it and it was our very first pregnancy. I was getting negative tests, had a light period and then nearly two weeks later started 'leaking'. Did a test and I was pregnant but losing it from that point on. Very stressful.
So very different for you hun, you have already grown an attachment, had a positive and then to lose it...Heartbreaking. We are here for you hun and give that darling boy of yours a big hug.
It will all happen when it should and this time of grief is horrible but necessary. My heart is with you babe. take care xoxoxo