Ive not been through this myself gina but I just wanted to reassure you that they are likely to monitor as routine and if they had been worried, they would more than likely have her in hospital monitoring her, not just checking on things twice a week. She only has 4 more weeks to go and is then considered full term so the only thing the baby is really probably doing now is filling out whilst the lungs finish maturing.
Try not to let it worry you and if you or your daughter have any questions or concerns, such as the chances of having a premature baby or what they plan to do, dont hesitate to call the hospital or her midwife.