How many DPO for implantation?

Heather • Full time work, full time mommy, full time wife! Working on baby number 2! 🥰
Curious to know how many days after ovulation could you expect implantation? I miscarried a couple months ago. My period lasted 4 weeks. Went away and came back 2 weeks later and was there for 4 days. After that I had sex 5 times during what I believed to be my fertile window (all the signs were there; ovulation pain on my left side this time, extremely wet, horny as fuck, wanting sex like non stop! Super emotional, and egg white CM). The last couple of days I've been feeling nauseous and weak. My breast hurt and yesterday in my underwear I had brown spotting. Today it's very very light pink. My period shouldn't be here until the 15th give or take a couple of days. Any ideas?