If both of my younger siblings are autistic should I get assessed and would I likely also have it?

So I was born female (now trans masc but that’s beside the point) I am the oldest of 3 kids. There’s me, my sister, and my brother. My sister was diagnosed with autism maybe 2 or 3 years back? (Can’t remember) and my brother was diagnosed today.

We all are diagnosed with adhd as well so is it fine for me to assume I’m also probably autistic until I can get assessed? (I won’t be able to get assessed until next year I think?)

Before either of them got diagnosed I heavily researched and I still do occasionally but I fit the criteria of someone who is higher masking (I believe my brother is also high masking because I had no clue he would’ve been autistic)