Missing the life I never had?

I’m 23, and I’ve been with my partner for almost 4 years. Before him I was in a 3 year relationship. I love my partner to death, I really idolise him and adore every part of his being. We have a home together, we are engaged and have a gorgeous little girl and we’re trying for baby number 2 but every now and then I really grieve for a life I never lived.

I see all these people posting videos / photos from nights out, girls weekends away, festivals, one night stands etc and although I’ve never been that type of girl (hence both my relationships being long term) I can’t help but feel like I’ve missed out?

I moved out at 18, lived with my then boyfriend until we broke up and then met my current fiancé and moved in with him. We’ve lived together almost as long as we’ve known each other, we’ve had pets together, moved home, had our daughter, we really matured fast and I love the family life but every now and then this little voice in my head asks me what life would be like if I hadn’t settled down.

I’m just sad right now…