Ovulation? Ttc? Late miscarriage

I haven't got a clue about any of this ovulation talk... I never tracked it before but I am keen to get pregnant again asap!

I am 22 diagnosed with PCOS in March 2018, I feel pregnant with my first child in July 'not trying not preventing' but I lost my baby at 5 months pregnant to what we suspect was either PPROM or an incompetent cervix in December

My doctor has confirmed that I am now testing negative for pregnancy and the hormone is out my system. And I had what we believe was a period last week.

As I have, had 100+ day cycle previous to falling pregnant I was advised to track my cycle using ovulation strips.

So far I am negative - I just want to know how it works how do you follow each test you take? Does anyone have any other advice for ovulation and ttc?

This is what I have so far I am aware that all my test are negative as I have only just finished my 'period'

Thanks in advance ladies ❤❤❤❤ I as desperate to get my rainbow baby 🌈🌈