Aww mama, first time kaya naturally scary! Please call your OB or go to the clinic/hospital right away to get checked, hindi dapat mag-wait with pain and tightening sa ganito kalayo sa delivery, okay? Better safe than sorry talaga, lalo na first time mom ka pa lang. Once the doctor gives you the all-clear, you'll feel so much better and mas makakatulog ka ng mahimbing! You're doing great by asking, that's exactly what a good mama does. Sending you strong mama energy!