Opinions and facts on the non hormone iud?

Laney • 💓Mommy to: Isaiah Dane •💓

I have some severely shitty mental health and the hormones in birth control really make me nearly suicidal. I'm 28 weeks pregnant and do not want another baby for awhile after this one so i was thinking about doing the non hormonal iud so that it will not mess with my hormones as much. Plus it also lasts several years and can be removed whenever i am ready for another baby. My mom says the non hormonal is "pointless " because it doesnt release hormones and so it has no point. I dont want the arm implant, or the shot because of weight gain and i have tried a few different pills and they all do not work well for me. Is the non hormonal iud effective?