Progesterone injections

Sydney

I started progesterone injections yesterday and my transfer is on Friday. How long does the pain last from this injection?? I did my left hip yesterday morning and it is still sore and feels like pushing on a bruise, but there’s no bruise. No pain administering the injections, just felt pain a few hours after and it never went away. I did a heating pad last night and it didn’t do anything.