Normal lang yan, mama, especially at 30 weeks, Braxton Hicks contractions yan, parang practice contractions ng katawan mo for labor kaya madalas siya tuwing gumagalaw ka or nagbabago ng position. A few of us preggy friends namin nag-experience din niyan at nag-relax lang, pero importante na bantayan mo if it becomes painful, regular, or may bleeding, if ganyan, kailangan mo ng check-up agad with your OB para peace of mind. Mas maraming tubig, rest, at relaxation ang talagang tumutulong sa akin whenever nag-tighten ang tiyan ko, kaya try mo rin! You're doing great, first-time mama, normal lang ang mga ganyang tanong.