pregnant again ??

Kaay

hey guys. i am 6 months postpartum. my last full cycle was july 19th . my cycle is 7 days late. i took pregnancy test and got a positive result… twice. Is it possible i conceived before my last period? it was super heavy cycle (needed tampons and pads) or would i have conceived after july 19th. I am have been doing research all morning but i cannot find a solid answer. any opinions ? i’m freaking out lol.