Help! Ovulation timing!

Okay Ladies! I need help! I'm currently dealing with AF! And this cycle i want to time ovulation and do all the ovulation testing I'm hopes to conceive my rainbow baby! I've never timed out ovulation or used the ovulation kits etc. So I need all the advice I can get! When do I start using ovulation test? And how many do I use a day? I have no on any of this! HELP!