Pregnant; This spontaneous prospective pregnancy case was reported by a consumer and describes the occurrence of EXPOSURE DURING PREGNANCY (Pregnant) in a 37-year-old female patient (gravida 3, para 1) who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 025L20A and 043L20A) for COVID-19 vaccination.     The patient's past medical history included Obstructive sleep apnea syndrome since 24-Jan-2020, Ectopic pregnancy on 28-Aug-2018, Fallopian tube stenosis, Subchorionic hematoma on 11-Dec-2020, Nausea (During last pregnancy) and Vomiting (During last pregnancy) since an unknown date. Concurrent medical conditions included Drug allergy (Scopolamine patch). Concomitant products included MACROGOL 3350 (MIRALAX) from 30-Mar-2021 to an unknown date and DOCUSATE SODIUM from 14-Dec-2020 to an unknown date for Constipation, TOPIRAMATE (PROTOMAX) from 11-Mar-2021 to an unknown date for GERD, ASPIRIN [ACETYLSALICYLIC ACID] from 16-Feb-2021 to an unknown date for Hypertension, DOXYLAMINE SUCCINATE, PYRIDOXINE HYDROCHLORIDE (DICLEGIS) from 07-Dec-2020 to an unknown date for Nausea, PRENATAL VITAMINS [ASCORBIC ACID;BETACAROTENE;CALCIUM SULFATE;COLECALCIFEROL;CYANOCOBALAMIN;FERROUS FUMARATE;FOLIC ACID;NICOTINAMIDE;PYRIDOXINE HYDROCHLORIDE;RETINOL ACETATE;RIBOFLAVIN;THIAMINE MONONITRATE;TOCOPHERYL ACETATE;ZINC OXIDE] for Pregnancy, VITAMIN D3, CALCIUM from an unknown date to 06-Dec-2020 and MAGNESIUM for Vitamin supplementation, ONDANSETRON from 14-Dec-2020 to an unknown date for Vomiting, FAMOTIDINE, ESTRADIOL from 03-Nov-2020 to 31-Dec-2020, PROGESTERONE from 06-Nov-2020 to 31-Dec-2020 and HYDROXYPROGESTERONE CAPROATE from 15-Feb-2021 to an unknown date for an unknown indication.   On 31-Dec-2020 at 8:27 AM, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 28-Jan-2021 at 8:18 AM, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. The patient's last menstrual period was on 21-Oct-2020 and the estimated date of delivery was 30-Jul-2021. On 28-Jan-2021, the patient experienced EXPOSURE DURING PREGNANCY (Pregnant). The patient received mRNA-1273 (Moderna COVID-19 Vaccine) beginning around the  tenth week of the pregnancy.  At the time of the report, EXPOSURE DURING PREGNANCY (Pregnant) had resolved. Not Provided    DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 23-Nov-2020, Pregnancy test: Positive. On 07-Dec-2020, Ultrasound abdomen: viable pregnancy (Inconclusive) Viable Pregnancy. On 16-Dec-2020, Ultrasound abdomen: hematoma (abnormal) still there. On 01-Jan-2021, Prenatal screening test: normal (normal) Normal. On 14-Feb-2021, Alpha 1 foetoprotein: normal (normal) Normal. On 01-Mar-2021, Ultrasound abdomen: normal (normal) Cervix3.33 cm. On 15-Mar-2021, Ultrasound abdomen: normal (normal) Cervix3.1 cm. On 22-Mar-2021, Echocardiogram: normal (normal) Fetal. On 29-Mar-2021, Ultrasound abdomen: cervical length 2 cm (Inconclusive) Cervical length 2 cm. On 11-Dec-2021, Ultrasound abdomen: subchorionic hematoma (abnormal) Subchorionic hematoma. On 21-Dec-2021, Ultrasound abdomen: normal (normal) <14 weeks.         Maternal history of subfertility was mentioned as IVF Pregnancy- Frozen embryo transfer of 5 day hatched blastocyst on 11-Nov-2021.   Most recent FOLLOW-UP information incorporated above includes: On 20-Apr-2021: Additional information received included : Patient details, medical history, investigations and concomitant medications.