Confused about dates, can anyone help?

[Sausagessizzling]

I got a BFP on clear blue this morning. Am now 13 days late so had taken a few tests over the last couple of weeks, all negative.
The clear blue test says 1-2 weeks since conception but we last DTD almost 3 weeks ago, which was a week after ovulation.
As the weeks don't add up could it be hormone levels are off and this isn't a viable pregancy?
Thanks any wise women who can help

How did you track ovulation? Considering your tests were negative up until this point I sounds to me like maybe you only ovulated two weeks ago? With sperm able to stay alive for 5 days it ties in with your DTD too.

Thanks @Juno231.
I don't track ovulation with temps or anything, I'm just going off CM and the fact it was right time in cycle.
I'm not sure what to do now, wait a week and take another test? Call the docs?

I agree with @Juno231. I believe it's likely you ovulated much later than you thought. Fingers crossed for you but there's no reason to believe there's any issue and the dates line up fine if you did ovulate late.