Spotting 4dpo

Last month I had a medicated IUI. Currently taking DHEA and CoQ10 supplements. Due to scheduling conflicts, couldn’t move on to another IUI this cycle. I used clear blue digital ovulation tests and got my peak on Saturday. We did try out The stork at home device and BD Saturday and Sunday. Today I’ve had intermittent bright red spotting, I’m slightly crampy, and a little bloated. I know it’s too early to be any kind of implantation. Just wondering if anyone else has any experience with this or thoughts. We will be doing our second IUI next cycle. Thanks!