Im curious as to your age as well. Your parents should not pressure you into a situation like this or any life altering situation for that matter. When you and the bf know that its the right time, then you'll know and that has nothing to do with how either of your parents feel. I would just tell your parents that when or if its the right person or right time you will be the one who decides. Tell them that you rescept their opinions and that you care deaply for this other person (if you do), but your a big girl and will decide when the time is right and with the person you want to spend the rest of your life with.
Also if you and your parents keep bugging your bf, he may get
fed up with all of you and then not only will you not be engaged,
but you won't even have a boyfriend!