Possible chemical but no bleed?

[user1489493013]

So last monday (13th) I got a really faint bfp at 12dpo, at 14dpo it was slighter darker on 2 different tests. At 16dpo BFN! So i suspected chemical pregnancy. Took another on 17dpo and still BFN.

I'm now 18dpo but I have not bled and still have lots of creamy CM which was one of my main symptoms.

Any thoughts? How long until the bleeding starts, I kind of want to get it over with so I can start trying again

I had one on November I had a postove test for 3 days then a negatives think ws about a week later I bled xx