Hay, mama, those sensations sound uncomfortable talaga! But honestly, pag may sharp pain like that at 37 weeks, it's best to call your OB agad or go to your clinic para ma-check properly, hindi kami makakapag-say for sure kung ito na ang early labor or something else. Better safe than sorry, lalo na ngayon. A few of us moms went through similar at turned out iba-iba ang causes, kaya importante talaga na i-assess ng doctor mo personally. Let me know how it goes, ha? Sending you love!