Can't find my IUD string!!

So, I have not had my period since july... so, I didn't check my strings in August since I did not have a period... here it is, September 4th and I still have not had a period, but tried to locate my strings during my shower and I cannot find them! And I'm home alone until tonight and I tried to schedule an OBGYN appointment, but they are unable to see me until next week. I have thick, white glue-like substance coming out of my woohoo and I also feel like I have a uti because my urine is dark yellow with burning... what do I do?!?! I can't wait 1 week.. I've read too much on google.