Uy mama, 11 days delay is definitely possible to be pregnant, lalo na if your cycle is usually regular, a few of us tried din bago kami mag-positive, and that's exactly when we started noticing the signs! Best thing to do is take a pregnancy test na (mas accurate pag urine test in the morning, or you can go straight to the doctor para sa blood test if you want to be sure talaga). The sooner you know, the better kasi knowing what's happening sa body mo is important, di ba?