I Am A 33 Year Old Pregnant Female Who Received

I am a 33 year old pregnant female who received a TDap Vaccine on wen as part of my OB visit. The Nurse gave it to me sub Q instead of IM. The injection site is red and swollen, my entire body is itchy all over. I take benadryl to sleep during the week as this pregnancy has left me with bad insomnia and had not been itchy. I did not take any last night however and have been itchy ALL DAY LONG.