Ay, ito talaga ay best kung kausapin mo muna ang OB mo, lalo na kung first time mo mag-exercise o may health concerns ka, kasi bawat pregnancy ay iba! But from what a few of us moms experienced, most of us started walking or light stretching around second trimester na, especially pag nag-settle na ang pregnancy at hindi na sobrang nauubusan ng hininga. Ang daling dali lang talaga, kahit 15-20 minutes of walking pa lang, but really talk to your doctor first para sure na safe para sa iyo at sa baby mo.