Bleeding after sex 6 months after lettz

Hi all so I first got told I had gcin in 2016 I had had 2 normal smears before that . I have since had to lettz to remove this . The last one was July 2017 & came back all clear  . I did hemorige both times after treatment so not the best experience. Bleeding was all settled until 2 months ago when I started bleeding before my period just light spotting & also now started bleeding during sex . I'm so worried what if there back or more serious. I have hospital next week for my smear but the wait is really hard as my thoughts are doing over time . Has anyone had the same experience  . I don't take pill & had my coil removed a year ago . Just use over protection . Thank you 

sorry new to site So not sure if I posted this right