Aw hipon, first time mom jitters talaga yan, totally normal to worry! A few of my mum friends din nag-experience ng closed cervix pa rin around 39 weeks, and honestly, every body's timeline is different, kaya don't panic pa. Best thing is to call your OB agad and let them check you, they might suggest walking, pelvic exercises, or other things na safe for your stage, pero kailangan nila makita muna kung anong exact situation mo. Sending you good labor vibes, you'll get there soon, mama!