Hi sweet I have read your other threads and really think that you are, understandably, torturing yourself. I totally get that you absolutely cannot believe that you are pregnant, you have been through so much and this was so unexpected, but you are stressing yourself unnecessarily.
I found out I was pregnant when I was about 4 weeks (hard to tell as my cycle was all over the place and the GP was unable to pinpoint any kind of ovulation through numerous blood tests) after 14 months of ttc. I, too, had horrific pain in one side and was sent to my work A&E with ? ectopic (no bleeding, just pain). My serum HCG level was less than 1000, progesterone was very low. I googled to within an inch of my life, tore the ears off my friend who is a MW, scared myself stupid as the low levels indicated a non-viable pregnancy. My non-viable pregnancy according to Dr google is now a very healthy 3 year old. Your HCG sounds fine to me, in keeping with dates, and I'm a bit
as to why a GP would dare place a number on an HCG to a young lady that a) has no knowledge of what that would mean and b) a young mum to be that is clearly incredibly anxious so is at risk of panicking if the levels fall below that threshold.
Having been through the stress and worry of long term ttc (albeit not anywhere near your league, I admit) and early, unexpected pregnancy I can only urge you to be kind to yourself, step away from google, stop POAS, and stop thinking so negatively about the small details. I can see you rolling your eyes now, it's easy for me to say, but it really is the best thing you can do.
Also, just to make you even happier, should everything work out well then this anxiety doesn't stop until the baby arrives. You worry before the dating scan in case you get told there's nothing there and you were never pregnant (that was my worry, I'm sure other people have/had different fears), then you worry before your 20 week scan that they find something wrong. Then you worry when you can't feel baby move, then you worry about baby being in the wrong position.......you get my point.
Please stop torturing yourself sweet 