7 days late and BFN

My period has always been like clockwork and now I am 7 days late and still getting negative results. This is so hard right now, I'm also peeing constantly and have sore nipples. My husband keeps telling me I must be pregnant, but I'm losing hope and confused. If it is still negative Thursday and no AF I think I'm going to make an appointment for a blood test. Thoughts? Anyone else have this happen??