pregnant; I started to smell smoke without being around any smoke/Phantosmia; This is a spontaneous report received from contactable reporter(s) (Other HCP). The reporter is the patient.  A 38 year-old female patient (pregnant) received bnt162b2 (BNT162B2), administered in arm left, administration date 26Aug2021 13:45 (Lot number: FC3181) at the age of 38 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "Covid-19" (unspecified if ongoing), notes: if covid prior vaccination: Yes; "Pregnancy", start date: May2021 (ongoing); "Heartburn" (unspecified if ongoing); "low vit D" (unspecified if ongoing). The patient was 17 weeks pregnant at the event onset. The patient is expected to deliver a baby(s) on 01Feb2022. Concomitant medication(s) included: PRENATAL VITAMINS [MINERALS NOS;VITAMINS NOS] taken for pregnancy, start date: 2019 (ongoing); VIT D3, start date: 2019; TUMS ANTACID taken for dyspepsia, start date: Jul2021 (ongoing); VIT D [VITAMIN D NOS] taken for vitamin d decreased, start date: 2018 (ongoing). The following information was reported: MATERNAL EXPOSURE DURING PREGNANCY (non-serious), outcome "unknown", described as "pregnant"; PAROSMIA (non-serious) with onset 31Aug2021, outcome "not recovered", described as "I started to smell smoke without being around any smoke/Phantosmia". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were not taken as a result of parosmia.  Additional Information: The most recent COVID-19 vaccine was administered: Pharmacy or Drug Store. No patient receive any other vaccines within 4 weeks prior to the COVID vaccine. Other medications the patient received within 2 weeks of vaccination: Prenatal Vitamins and VIT D3.  First day of last menstrual period 19Apr2021. Yes prior to vaccination, was the patient diagnosed with COVID-19. Since the vaccination, has the patient been tested for COVID-19 No. The patient has no reported allergies. Approximately 1 week after receiving the 1st covid vaccine patient started to experience smelling smoke when patient was not around any smoke. This occurs in various location & times. Patient alerted my PCP & OB, as of 10Oct it still occurs intermittently. Gestational period at time of initial exposure: 4months; 2nd Trimester. Recreational drug Use during Pregnancy. No smoke, alcohol and illicit drugs during this pregnancy. Number of previous pregnancies: 2 Number of other children: 3. Outcome of previous pregnancies previous maternal pregnancy complications. Previous fetal/neonatal abnormalities and type. History of sub-fertility: live births. Mother's Information - Delivery. Any problems before delivery No. Neonatal Information - Infant Details: Gender: Female. Paternal Information (51 years) - Exposure to Products: Product: Cardura, Indication: Void Issue, Start Date: 1995, Dose/Frequency-2mg/Day. Product: Zoloft, Indication: Anxiety, Start Date: 2003, Dose/Frequency-25mg/Day. Paternal Information - Exposure to Products - Recreational Drug use. No smoke during the mother's pregnancy. Yes the father drink alcohol during the mother's pregnancy 1-2X per Month. No father use illicit drugs during the mother's pregnancy.  No follow up attempts are possible. No further information is expected.