@ Nicola27
i too have 28 day cycles.... ur 1 day behind me
i am on CD 14 and i tested lunch time and no 2nd line..
so im going to retest in an hour at 7pm...
if you want to buy cheap ov tests in bulk you can get them from Ebay... i bought 20 Ov tests from Ebay for like £4..
also you can buy 30 40 50 100 and you can mix them with pregnancy and ovulation tests
keep me updated with your Ov testing