Ectopic pregnancy and past IUD use?

I am convinced that my IUD damaged my Fallopian tube resulting in my ectopic pregnancy. I have 2 friends that experienced ectopic pregnancies in the last week also past IUD users. Ectopic pregnancies occur in approximately 1 out of 80 pregnancies, while I know it is possible for my friend to fall under this statistic I am still really surprised with the high occurrence within my friend group (small sample).

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