Pregnancy symptoms?

How early did you start experience symptoms? My DH and I are TTC, I have the aching breasts and "cramps" but it's too soon to test. The things I'm feeling are not normal for me for pre period time. I'm just curious to what is "normal". I want to be pregnant so badly that I think I'm tricking myself into thinking I am. I have PCOS and know it will be difficult for us to conceive. Thanks ladies!