sending a nude photo through text who is 46 yrs old

a person who I was friends with who is 46 yrs old accidently got a nude photo of me. I was talking too her upset cause my mom is dying of cancer and had brain surgery. I was so upset I was crying and told her why I was crying she tried too calm me down, I told her I'm gonna show you why I'm so upset, I hung up went too the picture of my moms huge surgery scar. scrolling through my pictures I thought I was sending the correct one, and sent one nude of myself. I ddint even realize it until the next morning, I tried too call and apologize she didn't answer I never tried again. this morning I got a call from I think an off. and she had me on speaker and told me I am not to contact this person again for any reason I said yes maam. she asked do you understand I said yes. 6 hrs later I get a call on my cell again from a male off. asking for my full name date of birth and address. I told him it was accident and what I was trying to send he said i jus right the report the det. will call me