Why does my weight loss randomly stop every couple of weeks?

Is this normal? Or am i doing something wrong? I've been on keto for about a month and a half now and in my first month i lost 23 pounds! But the week before my first period on the diet,I lost nothing,the week of i obviously lost nothing and then the week after i lost 6 lbs.Now i'm stuck at that weight and haven't lost anything since.I don't know why its not adding up...i work my butt off every single day,I don't go over in carbs very often...like,is it because i lost weight so dramatically in the first month? Or is it just muscle gain?

Why is this happening to me? I know i'm being over dramatic and the number shouldn't even matter...but when i weigh in every week after working out and trying so hard,its extremely discouraging to see no results whatsoever.I'm hoping my next period will help regulate the weight loss,but i doubt that will work....

Has anyone had this problem?? is there any way to fix it?

Starting weight: 217

Current: 194

Height : 5'2

Target weight: Atleast 130