Hi mama! Yung normal body temp ng newborn ay around 36.5, 37.5°C, so 37 is perfectly fine naman talaga, pero the thing is, newborns are still learning to regulate their temperature, kaya they can fluctuate easily especially pag mainit o malamig ang room. A few of us mums use a digital thermometer (yung underarm or temporal type) para consistent readings, pero honestly if baby's acting happy, feeding well, at hindi siya sobrang mainit o malamig, likely okay lang siya! Kung worried ka or nakita mo na sobrang mataas or mababa, better to check in with your pedia just to be sure lang, especially at 2 weeks pa lang when they're still so delicate.