Not enough CM?

Rachel • 2 fur babies 🐶 expecting our first lil one 👶, happily taken 👫💏 , nursing student🌻♋👩‍⚕️ , CNA /EMT 🥼⛑

So this may sound weird but when i check my CM it seems as i never get mucb on my finger , like not enough to really tell the kind of CM, is this normal or happen to anyone else , im at a loss