Reaction to ivf drugs and trigger shot

sat

I am starting <a href="https://glowing.com/glow-fertility-program">ivf</a> cycle this month. Had three failed <a href="https://glowing.com/glow-fertility-program">iui</a> before and we have decided to proceed with <a href="https://glowing.com/glow-fertility-program">ivf</a> now. During my <a href="https://glowing.com/glow-fertility-program">iui</a> cycles everytime after trigger shot (ovidrel) i got severe stomach pain. At one cycle it was like labour pain. The doctor said it has nothing to do with ohss since i always had one follicle only. I am now scared about the <a href="https://glowing.com/glow-fertility-program">ivf</a> drugs since its more powerful than the <a href="https://glowing.com/glow-fertility-program">iui</a> drugs. Has anyone had any adverse reaction to <a href="https://glowing.com/glow-fertility-program">ivf</a> drugs. Pls send some encouragement and tips or things to discuss with the doctor my way.