Implantation?

Not due for af for 9 more days, I'm always regular. I usually start when the app says it's time maybe a day or two later, never earlier.

Yesterday, my boobs were sensitive and felt like I was getting sick. Today, I'm fine. No sensitive boobs or do I feel Ill.

Today, I wiped and seen this, very mild cramping down low. That's it.

Is this implantation?

According to the app, says I'm 6dpo