Anyone had more weight gain around 18-19 wks?

Am
I've been gaining pretty steadily 1ish lbs a week in the 2nd trimester, but this week (18th week) I've gained 4! 😬 I did have a couple meals that were less healthy than normal but that can't be all of it... right?! Wondering if this is normal. Definitely kicking my healthy eating up a notch next week!