u should honest to your bf about ur situation that u no ready for sex yet, wait till both of you getting more mature 1st since both of u since young, maybe u still under "playful" attitude, play enough 1st and sex later...    if unlucky that accidentally u get "kena number" while u still studying? a baby may destroy ur whole life if didnt plan properly... i have few of my relative and gf's friends, i heard quite a lot marriage is caused by baby, all the plans rushing like shxt and both family conflicts with each other... duh...  even though i have a stable work, owned car and new house under construction, i planned to have a nice marriage with new house for memory, baby will be later and provide baby nice environment to grow up...

if bf desperately need it, ask him use plastic bag... otherwise no sex ever...
i admit i desperate for sex sometimes, but i dont want baby now...
but my gf said dont use it if i dare... bcos she like to have her own baby asap lo...