any answers ladies ?!!

I had my last period Nov. 14th-17th. This month my period was suppose to start the 13th.. it's the 22nd of Dec. I'm officially now 10 days late & took a home test (clear blue) pregnancy test today & it came out negative. I made an appointment to at plan parent hood to get my blood drawn for an accurate result. Do you think it's too early still? Here's a picture of my log. I've never been off track for my period ever, nor have I ever missed a day. I always been on time. I haven't gotten any type of cramps. My breasts have been a little sore & I've been having a little bit of lower back pain.. am I the only one?