Last cycle I decided to buy the CB digital OPK and I have about 6 sticks left over to start me off this month.
My question is where on earth do I buy refill sticks for the OPK?? I have tried Amazon, boots, Google but I can't seem to find the sticks on their own anywhere. I can only find the refills for the fertility monitor but it says these aren't compatible with the OPK.
Or am I supposed to buy a whole new kit every month or so?!