This is my first month using ovulation tests and I’m very new to these tests so I need some help. I know that if the test line is lighter than the control line that it’s negative. I’ve been keeping my test strips so that I can see line progression and today’s line is much darker than yesterdays. So my question is should I start trying even when it’s negative but the line is much darker? I think my ovulation day is December 13 but I’m not too sure. When should I try? I know that sperm can live 3 days in the fallopian tubes so I definitely want to start trying 3 days before my ovulation date, what do you guys think I should do?