Can someone help me with an answer?

Val • Hi there! I`m 23- will be 24 in November. My husband will be 26 in May. We have known each other for almost 10 years.
So I'm new at using opk's, and I've been testing for about a week now. On Thursday afternoon I got a strong positive, yesterday I got another positive, and this morning it's a faint positive. My question is: What does the faint positive line mean? Does it mean the egg hasn't been released yet, or that it has? Sorry if it's a dumb question.