Braxton Hicks contractions; My nail beds were blue; Chills; I ached all over; Running a fever/Feverish; Vomiting; Shaking; This is a spontaneous report received from a non-contactable reporter(s) (Consumer or other non HCP) (patient).  A 25 year-old female patient (pregnant) received bnt162b2 (BNT162B2), administered in arm right, administration date 27Aug2021 10:00 (Batch/Lot number: unknown) at the age of 25 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Pregnant" (unspecified if ongoing); "Known allergies: Sulfa drugs" (unspecified if ongoing). Date of last menstrual period: 24Jan2021. The patient was 30 weeks pregnant at the time of exposure to bnt162b2. The patient was 30 weeks pregnant at the event onset. The patient is expected to deliver a baby(s) on 31Oct2021. The patient took concomitant medications. Past drug history included: Rosemary, reaction(s): "Known allergies: Rosemary". Vaccination history included: Bnt162b2 (dose number=1, product=COVID 19, brand=Pfizer, administration date=04Aug2021, administration time=03:45 PM, vaccine location=Left arm), administration date: 04Aug2021, when the patient was 25 years old, for Covid-19 immunisation, reaction(s): "arm was just sore", "Tired". The following information was reported: UTERINE CONTRACTIONS DURING PREGNANCY (non-serious) with onset 28Aug2021 03:00, outcome "recovered" (28Aug2021 06:00), described as "Braxton Hicks contractions"; CYANOSIS (non-serious) with onset 28Aug2021 03:00, outcome "recovered" (2021), described as "My nail beds were blue"; CHILLS (non-serious) with onset 28Aug2021 03:00, outcome "recovered" (28Aug2021 06:00), described as "Chills"; PAIN (non-serious) with onset 28Aug2021 03:00, outcome "recovered" (29Aug2021), described as "I ached all over"; PYREXIA (non-serious) with onset 28Aug2021 03:00, outcome "recovered" (29Aug2021), described as "Running a fever/Feverish"; VOMITING (non-serious) with onset 28Aug2021 03:00, outcome "recovered", described as "Vomiting"; TREMOR (non-serious) with onset 28Aug2021 03:00, outcome "recovered" (28Aug2021 06:00), described as "Shaking". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were not taken as a result of uterine contractions during pregnancy, cyanosis, chills, vomiting, tremor. Therapeutic measures were taken as a result of pain, pyrexia.  Additional information: If other vaccine in four weeks: No. Other medications in two weeks: Prenatal vitamins. Adverse event: My first dose, my arm was just sore and I was tired. My second dose, I woke up around 3:30 in the morning shaking so bad I started having Braxton Hicks contractions. My nail beds were blue and I couldn't stop the chills. I ached all over and was running a fever. Then I started vomiting. The chills and shaking stopped after about three hours (with the help of a hot shower, lots of blankets, and a heating pad). The Braxton Hicks contractions stopped after the shaking stopped. I was achy and feverish for over 24 hours though every time the Tylenol wore off. If covid prior vaccination: No. If covid tested post vaccination: No.   No follow-up attempts are possible. No further information is expected.