What should I do ?😭

I think my personal photos are leaked but I am not able to track.... Yesterday I took some personal photographs of mine and sent it to my bf in wtsap and once view only, but it was in my phone... Today I recieved a msg from a person in telegram: "your photos are in it" with a link, that is person is not responding and the link is asking for Phone number to get access and now I can't even do reverse image search because I deleted my photos in panic... What should I do now...😭😭 I can't even conform anything to file a complaint but I feel something is really wrong 😭😭😭 the only unusual thing I did yesterday with my phone was installing an app of care medical insurance... What should I do know....