HCG trigger shot

Carla
Did you have any side effects after the trigger shot (pain at site,swelling, etc). I had mine done yesterday and after the injection, I had a bit of swelling, redness and tenderness at the site. Today is still tender and I'm wondering if it's normal or if I didn't do it right or if I'm allergic (I'm allergic to so many things that I can keep up with it).