menstruation while exclusive breastfeeding

Hello mommies. has any of you naka experience ng inconsistency sa mens postpartum. ako kasi nagka mens ako around 5 weeks pp, then 2nd time was nung 3 months pp ako. now im 4 months postpartum na, and di pako nagka-menstruation 1 day delay palang. pag naga s*x kami ni hubby, withdrawal method kami, last time kami nag do was on 27th, 21 days after first day ng period ko (April 6th-April 11th) when should I take PT? Should I worry? share your experience mommies. and when naging consistent ang monthly menstrual cycle niyo? Thank youuu 🥰 #firsttimemom #pleasehelp #firstmom #advicepls #firstbaby #FTM #respect_post