Me & my dude had unprotected sex last week. He pre ejaculated in me and starts to ejaculate as soon as he pulls out. He wiped off, went for round 2 & pre ejaculates in me again. I was supposed to have my period 2 days ago. Still waiting. Could I be pregnant.

Yes, very much so, BUT there is no way to be sure without a test.

It sounds as though you aren't really trying to become pregnant, but at the same time you aren't really trying to prevent it... is that correct? It is not the most efficient way to become pregnant, but it certainly is possible.

His wiping off and re-entering is one of the more common mistakes people make. If you want to lessen the chances of being pregnant, he has to wear a condom Every time he enters you. It doesn't matter if he pulls out, that only lessens the chances, and many couples do not practice withdrawal well enough to make much difference. The re-entering after ejaculation is a perfect example of that.

Always use protection, and it would be wise for you to use a form of contraception as well as his using a condom, to make it less likely you will have an unplanned pregnancy.

While the week before a period usually does not provide the highest chance for pregnancy, it can, and does, still happen. Give it another week, as your period may just be off a bit, and see what happens. If still no period, try a pregnancy test.