The windows of "normal" are huge. It's not so much about the number as the way they are climbing, and that looks fine.

I would think you are further along than you suspect too. Positive hpt at 7dpo is very early. An embryo is unlikely to have implanted before 6dpo (generally between 6 and 12 dpo). It's usually a few days after implantation that you would get a positive on a hpt.

I know only too well how hard it is to not stress after a miscarriage but i have to say it. This is a new pregnancy. Try and look at it as a new experience and not fret on every detail. I know how hard it is but you need to try