Ovidrel

So about a week ago I had an HSG done and everything was normal. My doctor stated I had two great follicles and that she would suggest getting an ovidrel shot to release the eggs faster. My husband and I have been ttc for over 2 years. Today, which would be 5 dpo, my lower back has been killing me. I e also had some lower abdominal pain but not too bad; it’s more so my back. Has anyone had an ovidrel shot and is this normal?