Originally Posted by
TristaNicholle
Cycles can certainly vary from month to month and it's not unusual to have a longer one, especially if you are stressed. If you were using contraceptives as directed, most likely with a negative hpt you aren't pregnant, but it's possible you could indeed still be. Wait a few days and retest if you haven't started your period. Hcg (what a test reads) isn't in the urine until after implantation which occurs approximately 6-12 days after conceiving. Some women take longer to get a positive reading because the embryo implants a little later.