pregnant

Hi, I was just wondering, despite the fainter line, am I 100% pregnant? I am freaking out as this was completely unplanned. Is there any chance this could not mean I'm definitely pregnant. Also, in terms of surgical vs medical abortion, has anyone had any experience of either and can recommend which to do? I do not want my family knowing and I want it to be the quickest, easiest and less painful way. I am leaning towards surgical? 
Does anyone in the uk have any experience of how long the process takes from the initial appointment?
Please help I am so scared. Thank you!