hi Mi, nasa high risk pag below 18 months nasundan si baby at CS si mommy. that is why, recommended na 3 years age gap pag CS para makafully heal ang matres natin. there is risk mamsh. you just have to be careful and follow your OBs advices. ang cons din is, may aalagaan ka na toddler while taking care of your newborn while nagpapagaling ng sugat.