Ovulation tests information

Laura • 28 and husband 30, ttc baby #1 from Dec 2015, West Yorkshire, England ✨ Due 24 Oct 16✨
Hi all,
Bought a big pack of ovulation tests on the internet so I'm ready to go and get myself organised. Just wondered when and how you guys do it? Do you start after your periods? Just one a day?
Thanks in advance x