When can you see baby in sac?

You can typically see a baby in the sac, or gestational sac, during an ultrasound around 5 to 6 weeks of pregnancy. At this stage, the sac appears as a small dark area within the uterus, and by about 6 to 7 weeks, the embryo and potentially a heartbeat can also be detected. It's important to have follow-up ultrasounds, as early visibility can vary based on individual circumstances.