better kung 6mos. pero dapat may hulog ka within 12mos bago ka manganak. kahit 1 lang pero better kung 6mos. at dapat mataas hulog mo para malaki din makuha mo.
at least 6 months depende sa due date read more here: https://www.philippinesqa.com/2012/03/what-is-semester-of-contingency-in-sss.html?m=1
Lai Quizon Dela Cruz