Short umbilical cord; Sore-arm for one day; Maternal exposure during pregnancy; Flu-like symptoms; This spontaneous retrospective pregnancy case was reported by a consumer and describes the occurrence of INFLUENZA LIKE ILLNESS (Flu-like symptoms), UMBILICAL CORD SHORT (Short umbilical cord), PAIN IN EXTREMITY (Sore-arm for one day) and MATERNAL EXPOSURE DURING PREGNANCY (Maternal exposure during pregnancy) in a female patient of an unknown age who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination.     No Medical History information was reported.    In 2021, the patient received dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. Last menstrual period and estimated date of delivery were not provided. In 2021, the patient experienced INFLUENZA LIKE ILLNESS (Flu-like symptoms) and PAIN IN EXTREMITY (Sore-arm for one day). 2021, the patient experienced MATERNAL EXPOSURE DURING PREGNANCY (Maternal exposure during pregnancy). On an unknown date, the patient experienced UMBILICAL CORD SHORT (Short umbilical cord). The delivery occurred on an unknown date, which was reported as Unknown. For neonate 1, The outcome was reported as Delivered NOS. In 2021, MATERNAL EXPOSURE DURING PREGNANCY (Maternal exposure during pregnancy) had resolved. At the time of the report, INFLUENZA LIKE ILLNESS (Flu-like symptoms) had resolved and UMBILICAL CORD SHORT (Short umbilical cord) and PAIN IN EXTREMITY (Sore-arm for one day) outcome was unknown. Not Provided      The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown) was unknown.       Concomitant medications were not provided.  Treatment information was not reported.  3 months post-partum, the patient and the baby were doing well with no health issues.  Company comment:This case of Maternal exposure during pregnancy concerns a female patient of unknown age with no relevant medical history, who experienced the unexpected event of Infuelnza-like illness, Umbilical cord short, Low birth weight baby, and Pain in extremity. The patient received the a dose of vaccine at an unknown week of gestation. Infuenza-like illness and Pain in extremity, occurred approximately 1 day after a dose of Moderna COVID-19 Vaccine. Umbilical cord short and Lowbirth weight baby occurred upon delivery of the child on an unknown date. The benefit-risk relationship of Moderna COVID-19 Vaccine is not affected by this report.   This case was linked to MOD-2021-364900 (Parent-Child Link).   See case MOD-2021-364900 for details regarding the child case.; Sender's Comments: This case of Maternal exposure during pregnancy concerns a female patient of unknown age with no relevant medical history, who experienced the unexpected event of Infuelnza-like illness, Umbilical cord short, Low birth weight baby, and Pain in extremity. The patient received the a dose of vaccine at an unknown week of gestation. Infuenza-like illness and Pain in extremity, occurred approximately 1 day after a dose of Moderna COVID-19 Vaccine. Umbilical cord short and Lowbirth weight baby occurred upon delivery of the child on an unknown date. The benefit-risk relationship of Moderna COVID-19 Vaccine is not affected by this report.