Why did this happen?

Hi guys, so I am on a calorie deficit. So far I have lost three pounds. Well two days ago, I had a cheat meal and ate 2000 calories when I typically only eat 1400-1500 on my calorie deficit. I went from 140.2 to 141.4 yesterday, so knowing that I had a heavier meal the day before I didn’t think much of it.

I woke up in the middle of the night extremely bloated and I had some prune juice since I am thinking that I constipated. But now I woke up this morning and I am 143.6lb??

Is this normal? Should I change something in my diet? I am super sad because I was excited to nearly be in my 130s and now I am back to what I originally weighed in two days after a week and a half of progress…