get mother's weight monthly report by pregnancy id

{
    "data": [
        {
            "month": 0,
            "weights": [
                {
                    "active": true,
                    "id": 0,
                    "week": 0,
                    "weight": 0,
                    "weightingDate": "2019-08-24T14:15:22Z"
                }
            ]
        }
    ]
}