Momshie, super normal yan! At 8 weeks, malakas na talaga ang heartbeat ng baby mo, ang dami-dami naming friends na nakita sa ultrasound at parang "boom boom boom" sobrang bilis, na-emotional kami lahat hehe. Usually maririnig mo pa lang yan through doppler sa clinic, hindi pa sa bahay, pero once you hear it para sure ang peace of mind mo talaga. As for your PP pain naman, 10 weeks pa lang ka so totally normal pa rin, ang kaibigan ko nag-ache pa until week 12, depende lang sa labor mo at how your body's healing, pero if it's getting worse or super painful na, better check with your OB kasi baka may inflammation or something na kailangan bantayan. Ingat ka mamsh!