So I went in the morning to have the vet look at her incision. Yesterday it was red and swollen, and today it looked pink and little swollen, but I didn't want to take any chances of getting infection.
The vet looked at it and said that it is a little irritated from her licking on it but there is no infection ( thank God).
He just put E-collar on her and send her home.
I'm still home with her until 3 pm and than my roomate is comming home around 5 pm ,so she will be home alone only for 2 hours (wearing her E-collar).
Big Thank You to all of you for good advices. It is ALWAYS better safe than sorry!
oh, BTW they didn't charge me for the apointment, I just had to pay for the E-collar ( around $18
)