Implantation bleeding or period?

Can someone please answer to this post?? Im supposed to get my period on the 13th. This pinkish reddish color that was very light in flow appeared 5 days ago then came back 2 days ago & yesterday. I feel that its too early to take a pregnancy test so i plan to wait if i miss my period. I always think its my period but then it goes away then comes back.. Is this implantation bleeding?