8dpo -Positive OPK

So, I’m currently 8dpo. I had a positive opk on CD 13, my cycles are usually 28-30 days long. My fiancé and I are on cycle 2 of trying. I decided to take an opk this morning as I’m a Poas addict but I don’t want to waste pregnancy tests, It was positive. My period is 6-7 days away, has this happened to anyone else and they been pregnant? I know OPKS can possibly pick up on pregnancy. I’ve been having some symptoms as well like sensitive sore nipples, cramps, nausea, vivid dreams, etc.

Thanks xo