Just a note which might help some people now.
Smear samples nowadays are tested for HPV before abnormal cells. If you're HPV negative, you sample isn't tested further as it's almost impossible for you to have cervical cancer.
Because of this, you have the option of buying a private, home HPV testing kit, which will be analysed for HPV just like a smear sample.
I had been putting my smear off for 2 years (so 5 years since last one) for the same reason as you - I didn't want bad results! Plus due to previous trauma, anyone but DP touching me 'there' terrifies me.
The longer it went the more scared I was. One of my close friends is a GP and she's the one who mentioned that the test had changed so the private DIY test - if I could afford it - would mean I didn't need a smear if it came back negative.
I bought it, it arrived the next day, I sent it off the day after, and got results (clear!) within 6 days.
I am so relieved. I'm not saying it's an option to everyone as obviously not everyone has the spare cash for private testing, but for me it meant I could have my peace of mind without having to do what I was so scared of.
If it comes back positive you will still need to attend a regular smear so it doesn't solve everything BUT it will - for the majority of women - show a negative result. They also offer you advice about screening in the future, for me a test in 3 years.
There are pilot studies in London at the moment of exactly these kinds of self sample tests so it seems this is the way the NHS screening service will go in the future, but we don't know how many years off that will be. I fully recommend the private sample if you're scared of going for your smear - it's not free but can help either put your mind at rest or let you know that you really do need a smear test if you have HPV!