Am i seeing this correctly

3 weeks ago I had a period.. of course afterwards I had sex.. I never know when I'm ovulating to be honest.. sometimes I get gel like cm.. and some times I don't . I never really tracked my ovulation, even when trying to concieve my kids..I never knew how to do it.or what to look for... Anyways, lately I've felt extremly sick to my stomach and real crampy in my lower lady parts where my ovaries are and uterus.. so for the heck of it I took a test, I swear I see a line if I color convert it.. can someone help me? I feel like I have line eyes..