Hey mamsh, it's pretty common pa rin yan especially pag may karga ng baby o pag nag-exert, pero honestly dapat i-check mo na yan sa OB mo para ma-rule out kung may complications, kasi baka may inflammation pa or ligament strain from delivery, better safe than sorry talaga, lalo na kung tumatagal or tumataas ang sakit niya! A few of us mums experienced the same and it went away after a few more weeks, but some needed actual medical attention, so don't wait na lang, okay?