I don't want to get pregnant

no problem, i only wish there was more i cud say to help.

well, what does your mum have to say about this? in wat way is she taking his side? maybe her opinion makes sense, maybe it doesnt. she does realize that u are determiend to pursue education, right?

also, as far as lack of maturity on his part,.....does he see and realize what your sis and bhabi go through? wat are your sis and bhabis lifestyles like, are they also raising children AND going for education or is everything on hold for now while they are taking care of their children? if YES, then maybe u shud politely point this fact out to ur fiancee and give him real life examples of how hard (not impossible) but HARD it is to manage both kids and vigorous education. maybe once he sees it with his own eyes, it will give him a reality check.