Ooh congrats sa planning ng second baby! A corpus luteum is actually a good sign, it means your body released an egg, so yes, pregnancy is possible, pero para sure na about the details ng cycle mo at kung fertile window mo ngayon, better check with your OB para ma-guide ka talaga sa timing, kasi alam mo naman ang bawat body ay different. A few of us moms sa circle namin nag-consult din with our doctors habang nag-try para ma-optimize ang chances, at sobrang helpful talaga ng advice nila specific sa aming situation!