Hi December. It's bloody terrifying to have bleeding in pg and not know where it's from or if the baby is OK. I had bleeding at 12wks with my second pg and thankfully everything turned out well but it really scared me. But that said, it can be completely normal, especially after DTD as you could have a small scratch or something else completely innocent going on. Also try not to worry about your levels - they wont always double and that is still a pretty significant rise in just 3 days.

Have a read of this article, https://www.bellybelly.com.au/pregna...g-in-pregnancy it might help put your mind at rest until your scan.