BFP at 9dpo with 2 previous pregnancies, probable this should be the same for any future pregnancy?

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I’m 11dpo and am getting bfn. I got BFP with both my other kids at 9dpo.

Is it still possible to not get a positive till later or would it be likely that if I got BFP at 9dpo for other pregnancies, it should probably be the same for any future pregnancies?