Pasintabi po sa mga kumakain

Yes po, that’s actually pretty common at 39 weeks. Yung small brown particles, most likely mucus plug na po yun, and it’s totally normal to lose it as your body prepares for labor. About the pain sa balakang at tiyan—kung every 4 to 5 minutes na po ang intervals, it could definitely be contractions. Kung hindi pa naman super sakit, possible na early labor lang, pero kung tumitindi na or naging regular, it's best to head to the hospital for monitoring. Your OB can also give you more specific advice based on your situation. Make sure to keep track of the timing ng contractions! :)