Gaining weight weight but feeling great great

I’m 9 weeks and already gained over 10lbs😭 I read that in the first trimester it’s normal to gain 3-5lbs but I’m well past that. From 85lbs to 97lbs.. I used to be 120 before I got with my ex and when I finally got away from him over a year ago, I came back 84lbs. Couldn’t gain weight since and now that I’m pregnant, weight is all I’ve been gaining.😂 I’m not mad at it, just curious if anyone else gained weight like this, this early along. I’m 4’10 so I’m finally getting my meat back on my bones. Also wondering how much I’ll gain throughout the WHOLE pregnancy 😂