I haven't had mine fall out but I cant feel mine i have had it for 2 weeks!? i booked a doctors app they did a test & saw the strings and said it was in place.... on the net everyone said you will be able to feel them for sure, so will your partner etc etc but when I went to have a check up she said not everyone can, its high up in your cervix and in the leaflet I got, it said your partner should not be able to feel them... i heard they also soften up over time and wrap around your cervix.... the best time to feel them is after your period. I still haven't got my period which is why i am doing so many preg tests!!
People say they notice if it falls down you will be able to feel the strings for sure and maybe the plastic part... eugh plus more cramping and bleeding, hmm.