What to do

Hubby and I have casually been TTC for about 6ish months. Our LO is 18 months and was a “surprise” gift to us 😂

We want to take it to the next level and try a bit harder. Can someone please explain to me how to properly test for ovulation? Do I test multiple times a day? I keep seeing people post pictures of their tests with times and dates, do I log each test? What is the best way to do it? Do we BD every night during fertile week? How how long does a peak last? I’m sorry for All the questions, I’d just rather ask for personal experience.