Advice please first time using ovulation tests !!

Kelly • Pregnant with my 3rd child due 16 th of Feb I have a 3 year old daughter and in November 2015 I had a Mmc with my son 💙
Top test is from yesterday bottom test is from about 5 mins ago I'm getting closer how offen would you now take the tests ? When do u think I will ovulate this is my first time using them ? Help......