Could I be pregnant ?

Sooo my period was suppose to come in on thanksgiving day and I'm never really late or miss a period. well me and my husband had sex a lot during my fertile days and I am already 14 days late with my period! I took a pregnancy test ( the dollar store kind) and it came back negative like 2 days ago.., i spotted with a very faint pink discharge around my period with mild period cramps but it never came and I don't really have any symptoms other than a slight nausea, but it could be me just being anxious... what's the deal? Can I really miss this many days on my period and have a begatívé test ? I'm always right ok time with my menestral cycle