Should I get a Blood Test Done???

Hey Ladies,

I am now 11 days late. I have never been this late ever. I took a pregnancy test yesterday with SMU and it came out negative. I took 5 pregnancy test prior to that one and they all were BFN. I am having symptoms that I only get when I am pregnant. I am having soar nipples(this only happen when I'm pregnant), I am having mild cramping but no bleeding, very bloated, and I am super tired (also only happens when I am pregnant), I get 8 hours of sleep every night and still need a nap. I am so confused. Should I get a blood test done? If so when should I get it done? Hubby said wait a week. What do you ladies think?