Help :(

AF was due the 29th of last month and never came. I took 10 tests, 2 being positive the rest negative. Has this happened to anybody else and them be pregnant? If I'm not pregnant, how long do you have to try before you're able to do fertility treatments? I heard clomid could help regulate cycles and helps with fertility, is that true?

PS I have an appointment tomorrow, so I'm going to ask I was just looking for a little insight before I went