TMI- Masturbation

Zo
So I'm a very sexual woman, I masturbate twice a day usually. But the past few days I have not been able to get off! I'm just not h*rny! Very unusual for me, even on my period I have a high sex drive. My question is..is having a decreased libido a sign of pregnancy? I know it sounds like I'm reaching but I'm late on my period and this is very unusual.