Pregnancy

For those who have been pregnant. How did you know you were pregnant? What were the symptoms? How long did you wait before taking a test? I have been trying to have a baby since I was 18 I am 27 now and no luck. I ordered fertility complex from pipingrock.com and i have been taking them for almost a month. I am really hoping that this works with helping me get pregnant. It's just so depressing taking a test and getting negative results. Please respond. Has anyone on here taken fertility complex? And was it successful?