I think it's wonderful to consider engagement and marriage at a younger age to what is seen as 'the norm' nowadays. It if feels right for you, then go for it!
I met my husband when I was 19, we got engaged when I was 22, and we married when I was 23.
I knew from our first date that I wanted to be with him for the rest of my life, and if I could have had it my way, I would have become engaged and married to him within 1 year of meeting him.
My husband is of a different religion and culture to me, but his family were delighted when we engaged and married, as for them, it is normal and expected to marry at a young age. My white British, secular family however, were mortified that we had engaged at what they declared was 'too young,' and they frantically tried to have us delay our wedding plans for a few years. They also used to frequently tell me not to rush into having children, whereas my in laws kept on harassing us for years to make them grandparents. My MIL even sat me down and asked if I had fertility problems, as after 2 years of marriage I was yet to give them a grandchild. They thought we should've had a child as soon after we married as possible.
We listened to ourselves, and did exactly what we wanted, and engaged and married young, and during the 12 years we've been together, we have both completed Degrees and post graduate qualifications, and have been successful in our careers. We've bought our own property (well have a huge mortgage anyway), own a pet and a car. We have travelled to 8 different countries, and plan on visiting many more. And yes, we did make our parents grandparents, but many years after marriage, as this is what was right for us.
Many of our friends thought we were too young for marriage, and used to tell us they wouldn't do the same and that we shouldn't marry until later, but they are the ones who are now in their 30's and without partners or children, and keep fretting that they may never have either of these. They curse missed opportunities, and dwell on past relationships. You are lucky to have found your partner, and to have shared aspirations.
I wish you and your partner the absolute best for your future together.