Oo normal lang yan, first-time mommy! At 6 weeks and 5 days, sometimes ang baby ay hindi pa talaga visible sa ultrasound kaya iyan ang reason bakit pababalik ka after two weeks, para clear na makikita niya ang heartbeat at embryo na talaga, kaya relax ka muna at trust your OB. A few of us moms din dito were worried the same way at nag-come back kami after a few weeks, then lahat nag-develop normally naman, so wag mag-overthink ha!