tested positive for covid; tested positive for covid; not feeling well all day; had a fever; monitored her oxygen a little since it was a bit low; dehydration; Wife is pregnant and due with no exact date provided; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team for a Pfizer sponsored program (172086).  A 38 year-old female patient (pregnant) received bnt162b2 (BNT162B2), administration date 13Mar2021 (Batch/Lot number: unknown) at the age of 37 years as dose 2, single and (Batch/Lot number: unknown) as dose 1, single for covid-19 immunisation. The patient had no relevant medical history. There were no concomitant medications. The following information was reported: VACCINATION FAILURE (hospitalization, medically significant) with onset 26Dec2021, outcome "unknown", COVID-19 (hospitalization, medically significant) with onset 25Dec2021, outcome "unknown" and all described as "tested positive for covid"; MALAISE (hospitalization) with onset 25Dec2021, outcome "unknown", described as "not feeling well all day"; PYREXIA (hospitalization) with onset 25Dec2021, outcome "unknown", described as "had a fever"; DEHYDRATION (hospitalization) with onset Dec2021, outcome "unknown", described as "dehydration"; OXYGEN SATURATION DECREASED (hospitalization) with onset Dec2021, outcome "recovered" (Dec2021), described as "monitored her oxygen a little since it was a bit low"; EXPOSURE DURING PREGNANCY (non-serious) with onset 2021, outcome "unknown", described as "Wife is pregnant and due with no exact date provided". The patient was hospitalized for vaccination failure, covid-19, malaise, pyrexia, dehydration, oxygen saturation decreased (start date: 25Dec2021, discharge date: 26Dec2021, hospitalization duration: 1 day(s)). The patient underwent the following laboratory tests and procedures: oxygen saturation: (Dec2021) 97 which is normal for her.; sars-cov-2 test: (26Dec2021) positive; (25Dec2021) positive, notes: COVID-19 PCR test; ultrasound scan: (Dec2021) baby was not moving well. Therapeutic measures were taken as a result of vaccination failure, covid-19, malaise, pyrexia, dehydration, oxygen saturation decreased. Investigation Assessment was reported as yes.  Clinical course: The reporter called on behalf of his wife, 38 y/o female who tested positive for covid. He was looking for availability and information on Paxlovid. He and his wife received both doses of Pfizer covid vaccines in Mar2021, PQC  filed. Wife is pregnant and due with no exact date provided. Reporter states, "we avoided contracting this for entirety of two years, carefully, vaccinated , I have received booster, she has not". On Christmas day she showed symptoms and is due to deliver baby this week in a few days. We are all negative except her. We went and checked on baby in the hospital and they kept her overnight. the baby was not moving around that much, but baby was okay. They did an 8 point test to make sure. They told them at the Hospital to try and get a hold of this medication Paxlovid. Reporter clarifies that the way that is worded sounds like his wife had COVID after getting the vaccine, but she got that back in March, her second dose. He says they have not had COVID this whole time, she is due to deliver and they got her tested and she tested positive on Saturday which was Christmas day. He says his wife was not feeling well all day, and had a fever and her OB told her go to the hospital to get checked in the Withheld Delivery Unit since the baby was not moving well and they tested his wife for COVID and it came back positive. He says they were told it was most likely Omicron, and with her delivery date so close, it was suggested to them to try to get ahold of antibody treatments like monoclonal treatment or Paxlovid to ensure a smooth delivery. He says it was so new though it is recommended by the OB office and hospital, everyone does not know what to do and they could get no direction for how to get Paxlovid, so he called to ask about it. Weight was described by the reporter as his wife was usually 133lbs but is 190lbs because of the pregnancy. Reporter says his wife tested positive for COVID with a test that was not a rapid test but the other one, he forgot what it was called, clarified to PCR test. He says he also did a self test on her at home, one of the antigen tests made by Abbott, which confirmed the positive they got with the PCR test at the hospital on 25Dec. He says when she came home after being discharged on Sunday morning he gave her the antigen test, so that was on the next day, the 26Dec. He says his wife was in the hospital overnight, and they did no treatment for the COVID just an IV for dehydration and monitored her oxygen a little since it was a bit low. He says her oxygen has been normal range since, they have a finger oxygen thing that says 97 which is normal for her. He says the outcome for the dehydration was hard to tell, but his wife has been drinking a ton of water. Regarding investigations, the reporter says they did a couple ultrasounds for the baby but nothing that applied to his wife physically.The lot number for bnt162b2 was not provided and will be requested during follow up.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202101873858 Mother / baby case