I’m looking for some advice or if anyone has been through this.

So 8 days ago i took an ovulation test that was positive and had sex. Three days later started spotting/ light period for about 4 days. I started taking my OPKs two days after I ended what I think was my period and got this today. So again this is from today 8 dpo and I got another positive OPK . I used the same sample to see if it was possible that i mistaken my light period for implantation. A negative pregnancy test. I have a super super irregular cycle plus I am beginning to wean my 1 year old from nursing. If anyone has any advice or knows why I would get 2 positive ovulation tests within 8 days.