Mama, kaya mo yan! Those tightening sensations at the pressure you're feeling down there ay normal na, lalo na ngayon na malapit na talaga, pero since wala ka pang discharge at ganyan ka-intense ang sensations mo, I'd really suggest checking in with your OB just to make sure everything's on track, better safe than sorry na lang, especially first time. A few of us mums, sobrang anxious kami near the end kaya we'd rather have our doctors reassure us, and honestly di kami nagsisisi, peace of mind lang talaga yun, lalo na pagod ka na talaga and over it na! Rooting for you sis, you're so close na!