If it’s common for implantation to happen at 9 dpo then why did my last pregnancy I implanted at six and got a positive pregnancy test on first response in digital at 10 dpo? I tracked ovulation with opk and get my period around the exact same time each month so I’m pretty normal. I ovulated cycle day 21 now to cycle day 30 . I just hate that I been struggling with ttc the 2nd time around. Dr said everything should be fine ...