mamadiva yes, please book a smear test! They're not exactly fun, but there are much worse things that can happen to you.
I had a close call with cervical cancer 4 years ago, had the worst results possible (CIN3) which are the last stage before cancer. I wasn't sexually active until 22, had had 2 boyfriends, regular smears, didn't smoke, went to the gym and I still had problems at 30.
Watching what poor Jade is going through is heartbreaking.