Last Thursday I went to the doctor because I was having bad pelvix pain in both of my pelvics , doctor did a pelvic exam , he gave me an antibiotic because he said looked like I had pid cause I had a lot of scare tissue I took my medicine for a week and a day but stopped taking it because it gave me a bad reaction to my vagina , but I want to know will the pid go away cause I only had 3 pills left and can this be the reason I can't get pregnant even though I still get my period

You are risking a recurrent infection by not completing your course of medication. Furthermore, your partner needs to be treated as well, or you may be re-infected the next time you are sexually active. If you are reacting to your medication, you need to contact your doctor for another antibiotic so you an complete treatment. Pelvic inflammatory disease is a cause of infertility, and the scar tissue can cause infertility. If you are trying to get pregnant, you and your partner need to see your doctors immediately to complete treatment, as a recurring case may cause scarring that will permanently damage your fertility.