I am sooo sorry for your loss! I hope you're doing OK! You've been through a lot. And, it's a good thing you got some of the answers you need to get a healthy PG going
It's so hard to tell what the spotting and cervix position means. It definitely could be implantation bleeding. And, a high cervix can be a good sign. But, the only thing that's going to tell you for sure is the hpt. I realllly hope that these two symptoms, along with the others that you mentioned, add up to a beautiful sticky BFP! KUP! Has the spotting stopped? How are you feeling?
Let us know!