Hi Carrie,
Starting out TTC, or even going with the no conception when it happends can be so consuming and confusing. Well done for checking out fertility friend. At first it may seem a little daunting but it does get easier and it will make sense. My advice would be to take the free course that fertility friend offers, it provides lots of information which I believe is always good.
Reading back to your first post, your acknowledge that sometimes it takes a while to get your body back into some rountine after coming off the bcp. Each woman has their own experience and what is normal for others but not be normal for you.
Some symptoms of pregnancy are ones which can just be for AF arriving too! Just to make us all more frustrated.

Have you tested again since you last HPT?