Menstruation problem

Hi, I’ve given birth 10months ago (cs).. they told me that I should have menstruation 6 months palang after giving birth. Until now wala paren, I took pt too, if ever I’m preggy again, but no. It came out negative. I’m worried that something’s wrong.. I just wanna hear some opinions. Pure breastfeed po si baby, may nagsasabi din na, normal daw yon pag nag bebreastfeed ka. May nag sasabe na baka PCOS. Hindi po ako mapalagay sa pakiramdam ko:(( #1stimemom #pleasehelp #advicepls