Has anyone only found out they were pregenant from a blood test.

I have 4 days late and my boobs are extremely sore. My only other symptom has been slight cramping. My periods are usually regular all the time and my husband and I we're trying during my ovulation week. I haven't gotten a positive pregenacy test yet but was wondering if any ladies have has the issue is negatives and they only received a positive test by a blood test.