Congrats, what a rollercoaster you went through. So glad things turned out well.
Just wanted to mention--I bled from 4 weeks to 12 weeks with this pregnancy, including a massive bleed at 9.5 weeks that included clots, bits of placenta, and decidua. Doctors gave me answers ranging from pockets of blood or irritation from the implantation process, to poor attachment of the placenta. It has not affected baby in any way so far--she is, and has been, measuring ahead the whole pregnancy. Bleeding can be so scary but in many, many cases, it's just a very weird part of an otherwise totally healthy pregnancy! If you are still spotting or bleeding, just a word of caution to keep an eye on your hemoglobin. I became very anemic because I was spotting so much, and for so long.