If i get hsg done after having pid in the past will that help me to be able to get pregnant in the future?

What did u your: Gyn say ? If you had pid in the past an hsg could reactivate it and cause a bad pelvic infection and ruin your tubes assuming they are not ruined from the pid already which they may or may not be, in your case a laproscopy with dye injection during the procedure under direct vision would be better because if the tubes look bad u don't inject the dye and either way u need antibiotics.