Hey mama! Ako personally, I gained around 8-9 kg by second trimester, starting from 58 kg before pregnancy, but honestly every body is different talaga, some of my mum friends gained more, some less, and lahat healthy ang babies nila! The important thing is you're eating well and your OB is happy with your weight gain, hindi yung exact number kasi stress lang yan. Are you worried about something specific with your weight gain?