Blood test...

Kasie • Hubby and I are 27. We have an amazing 4 year old boy and beautiful 5 month old twins.💜💙💜
Have any of you ladies had faint then negative then faint hpt's, ended up getting a blood test and turned out pregnant? Mine was so faint this morning that I had to take the test apart to see. I'm now 4 days late. Should I get a blood test?