Yes, it's far too early. Often, the egg has not even been fertilized yet.
No it can not.
Promethazine (Phenagren) can cause a false negative.
The cause of pregnancy is intercourse but that is probably not what you mean. Rephrase the question.
BV won't cause a false negative on a pregnancy test.
Some infections in the kidney can cause false positive dipstick test results but not false negative.
Doubtful but If you feel that you got false results you should always test again.
Can atenolol cause a false negative
Pre-ejaculate.
no
yes
If you get "intimate" enough, it's possible though unlikely.
can atenolol cause a false negative on a pregnancy test