So the past two months I have been using ovulation tests..last month I had a line for two days, but it wasn't darker than the control line, and suddenly the next day there was no line. This month I had a line for 3 days, but never darker than the control line. My fiance and I still did what we needed to do just incase. Today I took one thinking "todays the day the line will be darker." So I just looked, and the line is completely gone. My question is- will the line always be darker? Now I'm scared I'm not ovulating at all, because none of the lines were darker than the control like I've heard they should be :(