So I don't know if this is weird or not and I wanted to get others' experiences with weight gain during pregnancy.

I weigh myself every day to keep track of my weight. My doctor advised me that the first trimester I shouldn't really gain weight and after that one pound per week on average is what I could expect. So far I'm right on "schedule." But I notice that instead of gradually gaining the pound over the course of the week, I'll be the same exact weight for days and then in one day gain a a whole pound! It's been like that since I hit the second trimester. My weight chart looks so weird because it has these massive spikes as opposed to a gently incline.

Is this weird?