3 positive tests but yet still unsure...

[MxMomma21]

I am new at posting here but have found just reading the posts have helped me so I decided to ask the question that has been bothering me!
I have taken 3 ( yes 3) first response early pregnancy test and all 3 were very positive with two pink lines before the 3 minutes. But I still have 2 days before I am suppose to miss my period. I have read many articles that said even though you test positive you still have the chance of not being pregnant because implantation never really occured. Even though I have some of the same symptoms I had with my first pregnancy (I am very tired, slightly nauseated, my breasts are tender and for the last week I feel as though I am going to start my period but have not) I am very confused and still unsure. What are the chances that I will not end up being pregnant? I want to make an appointment with my O.B but I don't want to jump to conclusions without knowing for sure that it's a good possibility. Does anyone have any suggestions? Should I just wait around and buy another test or assume that the first three were accurate and schedule my appointment with my doctor??