Ay, alam ko yan, mama, lower back pain sa early pregnancy is pretty common talaga, lalo na if you're on your feet the whole day sa work, pero since you just felt it suddenly, mas safe na i-check mo with your OB para sure lang, especially sa ganitang early stage pa lang. A few of my mum friends din nag-experience ng back pain sa first trimester, pero better safe than sorry talaga, lalo na kung iba-iba yung dama mo or may ibang symptoms.