Could it be a sign of pregnancy?

I'm now 11 days passed missed period got a neg test 4 days ago. Gonna be testing again in the morning. Well tonight I have cold like symptoms alone with back and neck hurt and a little bit of cramping. Also my boobs are sensitive. What do you guys think? Also my last period was first week of September. Supposed to be first week of oct and I'm late. Well Oct 3rd I had very lite sporting when I wiped and that was it just that one time. Thought it was af coming but still hasn't showed yet.