should i tell them i am engaged?

Beatrice is exactly right.

If you're ready to be engaged/married, then you shouldn't be worried about telling anyone. Keeping it a secret from anyone would prove you are too immature.

I would be surprised that your parents think you are "rushing into it" since they appear to have accepted you living with him.
If you wait until you are 25 then you will have been with him 9 years, is that rushing things ?

You're obviously mature and committed, and there's no reason for you not to tell your parents.

They'll understand your desire to take your relationship to that next level, just make sure that you mention that you're waiting until 25.

All the best luck from one young fiancee to another :)

My concern would be that if you are worried about telling your parents , then you are not ready for that step regardless of your age.
My daughter got married just after she turned 22, 1 of my sisters was 20 & was married for 32 years ( when her husband died).
Personally I do not see the point of getting engaged , then waiting so long to get married . BUT THAT is just my opinion.
I know a lot of people who got married at about 20/22 & are still married 30 +years later.

Well while people might think it's to early, every person marries when they feel ready. If you are economically stable, you have an amazing relationship, you love each other and everything's in place, you should get married when you want to, not when society tells you you should. Think about it, lets say 26 is "the age" if youre planning on having kids it's already "unsafe" to have them after 30, which is within the first 7 years of marriage, which they say are the hardest.

Society doesnt make the rules honey. Are you happy? Well then go right ahead.! Yell it from the rooftops.! Tell everyone.! And congratulations.! I wish you both the best.!

If you feel like you cannot tell people that you are engaged, then you aren't mature enough to get married.

Also, since you're planning a four-year engagement, there's really no need to tell people right now.

An "engagement" is supposed to be a promise that you will marry sometime in the near future, and once you're engaged you should ideally start planning a wedding soon.

The whole idea of "We will get married someday when we're older and we're ready" ... well, that's called "dating." That's the whole POINT of dating. So you're not really engaged right now ... you're just dating. Saying, "We're engaged! We're getting married in four years!" just makes you sound like a baby who wants to play house.

You can do whatever you want right now, but yeah, people ARE going to think you're being immature and rushing into it - because you ARE immature and rushing into it. People don't say/think these things just to be big mean poopieheads who are jealous of your perfect barely-out-of-your-teen life and bust your balloon ... they say/think it because it's the truth, and some people are just older and wiser than you. You're 21 - of course you think you're SO MATURE and know everything there is to know about life and love.

You're so young. Don't worry about an engagement right now. Keep dating, and once you get to an age where you feel like you're old enough and you can fully support yourselves, THEN you can gte formally engaged and plan a wedding and announce it to people.

If you are living together, a so called engagement is practically meaningless.

So don't tell anyone, it's all old hat, no one will care.

well way too early to tell them you are enageed shall wait till get older in life

I'm 22 and got engaged to my boyfriend of 11 months and all of or families and friends are thrilled for us. Best to tell people they will want to know

Yes,if problems arise,fix them instead of divorcing.