Weight Gain stopped??

M

I am petite (105lbs, 5’2 PP) but have been gaining weight steadily this pregnancy. By week 26,4d I weighed 123lbs. However, I am now 28w, 4d and I am still at that 123 lb mark. I’ve varied from day to day up and down, but have not been steadily increasing as I have in the past.

Should I call my midwife? Or wait until my paint next Thursday?