Been ttc but its hard since my period is unreagular. My nipples are sore so I took a test&nothing came up till 1-2hrs later now there is a faint line?

Follow rules. Unless test says to read that long after, then it can't be used for anything outside of its "read window." if w/in window, "might" be early preg vs hormone imbalance. Could wait 2-3 d and retest to see answer, or contact your gyn, as may need hormone level testing to be sure the irregularity is ok for you and not hormonal, which might impair ovulation.