A week after my expected ovulation day I started spotting very little only showed when I wiped my periods not expected for another week I ve been trying to get pregnant could this be implantation bleeding

There's a lot of debate about implantation bleeding, and whether it's real.

So, depending on what you believe, who you believe, it's either not at all possible, or possible. Neither theory helps you determine if you're pregnant.

The only thing you can do, which is proven, is wait until your period is due. If you miss it, wait a week and than test using first morning urine. If the test is negative wait another week or two. If you still haven't gotten your period than test again. If that test is negative wait until your next period is due. If you miss it than test again or see your doctor for a more accurate blood test.

That's all you can do to determine pregnancy.

Good luck.