Oo, normal yan sa pregnancy, lalo na around 20 weeks kasi lumalaki na ang baby at nag-astretch ang ligaments mo, pero since first time ka at intermittent lang ang sakit, mas safe na itanong mo sa OB mo next check-up para sure lang, baka round ligament pain lang talaga, pero peace of mind mo importante! Drink lots of water, rest when you can, at kung biglang intense or may bleeding, go to the hospital na agad ha.