Hay, normal lang yan mama, lalo na as you get closer to your due date, ang Braxton Hicks contractions na yan (practice contractions) and feeling ng pressure sa tyan is very common at 36 weeks. The "feeling na lali kang napopoop" is usually just the baby pressing down on your intestines, kaya siguro parang gassy or constipated ka lagi, pero wag mag-alala, marami sa aming circle ng moms na naranasan yan at normal lang talaga. The real labor is usually mas malalaki ang pain at mas regular ang intervals, plus may bloody show or water breaking, so you'll know the difference when it happens, pero para sure talaga, best is to message or call your OB agad if you're worried or if the contractions become very regular and painful na, mas better safe than sorry, bes, lalo na at malapit na! Hang in there, almost there na!