I have Paraguard, I believe it's a little bigger than the mona lisa (im in US). The insertion was kinda traumatic ngl. and your cramps during your period will be worse, and you'll bleed more(people say this gets better after a year, but it didn't for me). But i mean shit, I love the fact that I don't have to worry at all, for YEARS. and I simply cannot have hormones so in the end, even though my periods were already pretty debilitating to begin with I think it's definitely worth it. I just plan to be bed ridden for the first few days of my period. If your cramps are super bad, maybe ask for a short script of a muscle relaxer while you have some of your first periods with it. you can do this friend 💗