Is there something wrong?

My husband and I have been trying for a year and 9 months... This time we thought we were pregnant. I'm 8 days late (latest I've been is 3 days) I have sore boobs. High sex drive (I never have a high sex drive) "when I'm about to start." I have the mind where if it happens it happens. I've taken 3 test all negative... 😖 I just want to start if I'm really not pregnant. Should I go get a blood test? Help!