Received vaccine at approximately 12:30 pm  on 3/15/21 at 13 weeks pregnant (due date of 9/15/21). Weight and height 5'0", approximates 136lbs.   During injection there was a pain from the needle insert and immediate soreness. I would describe it as more painful than the flu shot that I received in November of 2021. I was then escorted to a chair for a 15 minute observation period. I did not have any allergic reactions to the shot. I continued to feel slight soreness in my left arm for the rest of the day.  At approximately 8 pm I began to feel "aches and pains" similar to those during a cold and flu. I took (1) regular strength Tylenol Acetaminophen 325 mg tablet. I began to feel a little bit warm around 9-10 pm and checked my temperature with an infrared thermometer and it was slightly elevated by a degree (no exact measurement). I  went to bed at approximately 11:30 pm.   At approximately 12:45 am I woke up and took my temperature. I first used the infrared thermometer and it came back as 99.4 F. I felt very warm so I then switched to an Oral thermometer for accuracy and began to record the following: 101.1 F - 12:45am (was under blankets so got out of bed to cool off) / 100.0 F - 1:05 am / 100.9 F - 1:20 am  At 1:10am I used a cold compress (small ice pack wrapped in a kitchen towel) to cool off and then took a luke-warm shower at 1:15 am (did not wet hair). I also drank a big water bottle of water (Tap Water) probably around 500ml. The room temperature was around 74 F. I re-measured my temp at 1:40 am and it decreased to 99.3 F. I took a 2nd Tylenol tablet (same as above) at 2 am. My temperature at 2:05 am was 100.0 F.  I then went in and out of sleep and recorded my temps every time I woke up and went to the bathroom / drank more water. 98.5 F at 3:55 am / 98.4 F at 5:55 am / 99.0 at 7:25 am. At 7:30am I took a 3rd & 4th Tylenol. Temp at 7:55am was 99.4F. I went back to sleep and then woke up at 9am to login remotely for work. Temp at 9:25 am was 98.7.  I then took a nap from 9:30 am to 12:00 pm (my boss told me to go to sleep after our call) and slept very soundly. When I woke up I felt a lot better. Aches and pains were no longer present and fever appeared to be gone. The worst of the symptoms were over. I then spot checked my temp a few times throughout the day: 98.0F at 12:15pm / 98.3 F at 1:40pm / 98.7 at 2:05 pm. At 2:15 pm I took a 5th Tylenol just in case. I took my last official temp at 2:20pm at 98.3 F.   At about 3pm 3/16 I had a telehealth visit with my OBGYN. She said that my symptoms were normal and everything looked ok. My test results from my 12 week sonogram I had 2 weeks prior were all OK as well. To my knowledge the baby is tracking healthy. Note that during the whole time I did not experience any symptoms related to the baby. No cramps or pains in my abdomen. I am happy to share any past or future data about my pregnancy if anyone reading this is interested in contacting me.  I then randomly measured my temp until bed but it never came back as higher than normal (didn?t write it down). Slept through the next night normal and woke up normal temp as well. I would say I was more tired than usual on 3/17 but did not have any more flu like symptoms. The only thing that remained was a soreness at the injection site. It was at the spot of injection and also kind of the general area. The pain/feeling completely went away by the end of the week 3/19.   This is a very long description of symptoms. I don?t know if it?s helpful or if anyone even read all of it. But I?m just writing it down for record.