Implantation bleeding????

Tamara • Mommy to my 2 beautiful baby boys, Nathan Louis💙 born August 12, 2017 and Parker Joseph May 6, 2019❤️ My whole world😍
Last period was July 13, but I think I ovulated late. I'm hoping so because I really want this baby. Been bleeding since 8/25. Everytime I wipe it's blood on the toilet paper. Everyone PLEASE pray for me. 8/20 my hcg level was 137 and 8/25 was 214, hoping on Monday it doubled ❤️ took a Clearblue digital YESTERDAY and it said 2-3 weeks when last week it had said 1-2 weeks so doesn't that mean my levels are still going up? And that I'm really only 4-5 weeks pregnant?