my cycles are usually 26-27 ..after my monthly periods day 1 until day 7..i thought starting day 8 -15 i am fertile,,then after 10 days frm last day of my period..it regular for me to feel the sign that i'm going to have my next period..My last period was April 13 ang having sex with my husband last April 21,23,24,25..but after 2wks or less..i feel tenderness of my breast w/c is very normal to me bec. expecting of my monthly periods again for May..but till now i have no period but my breast are so tender and feel much bigger w/ my usual cup sizes..but i have no missed of having my breast tender my periods will come