I'm just curious!

So I've been feeling off the last couple of weeks I'm 9 months pp and we are not trying but also not preventing we've always wanted kids close together in age. So urine tests are negative, I thought I saw something but not sure, anyway so I am exclusively breastfeeding and saw online that breastmilk can detect pregnancy earlier than if you peed on a stick, so I used my breastmilk and it showed positive! Now I know it's not confirmed that I'm pregnant but what I wanted to know is, did anyone else try this and it actually meant you were pregnant??? Having nausea and left sided cramps in my lower abdomen. Thanks!