All good

Ok. So if dates are right, you'd have to be around 4 weeks which could be the reason for the your HCG being where its at.
x
I'm sorry, but if you ovulated on October 16, you would be six weeks or so pregnant (it is taken from your last period starting, not ovulation). There is always hope for everything, but 33 is extremely low for six weeks. I am really sorry

Wishing you all the best x