IUD-- no strings after a week?

🐛Nicole🍦
So I got ParaGard than a week ago. Finally dug up there today to check for the strings, & I could not find them. Felt all around my cervix, nothing. 
Has this happened to anybody else? I haven't felt any weird side effects other than bad cramps the first day & occasional cramping since, so I doubt it's expelled or perforated or anything, & I surely haven't seen it come out in the toilet.
 Perhaps my cervix is just in a bad position right now & I can't reach it? I'd call up my doctor but that doctor is a Planned Parenthood in a different state...