Article in The Scottish Farmer saying that shepherds with a flock barren rate of more than 2% can get a subsidised test for toxo.It's available until the end of March 2015.
EweCheck data from 2014 showed that 85% of flocks tested had been exposed to toxoplasmosis, which is the main infectious cause of early embryo loss in sheep and a cause of abortion, barrenness and weak lambs.
I'm not sure hhow they would deal with smallflocks - what's 2% of 6? But if you are concerned, have a chat with your vet.
We started vaccinating for toxo and EA two years ago and I wonder if our improved scan rate is attributable to that.