I am so confused, I am normally a very regular 28 day cycle, but last month i had an earlier period and my cycle was only 25 day....also last month was oddly enough the first attempt ttc...i was assuming because i am regular i ovulated on day 14 of my 28 day cycle...and i didn't get pregnant and got my period early..I am thinking i ovulated EARLIER and thats why my period came earlier, which leads me to this month, My period arrived last month cycle day 25 ....8/16/11 ...which is unlike me, ...my husband and i dtd often enough, i had some signs i was in a fertile window, I just don't know what to expect now, is there anyway to figure out when i ovulated, i don't even know if i should expect my period on cycle day 25 or 28...what day would you assume i ovulated on based on getting my period on 8/16 ..also when should i expect next period...i would like to know when i could test..but i don't even know how many dpo I am..please help