TMI WARNING, is this implantation?

only when i wiped it had lasted for like 2-3 days supposed to start my period in 4 days. Ive had unprotected sex many times in the past month since November 4th and hes cummed in me. I’ve been feeling nauseous I’ve thrown up a few times my boobs have been sore and tender i cant even touch them for the past week or so. I’m also peeing like crazy at least every hour and I wake up in the middle

of the night which i dont normally do. Also had a few food aversions and like a metalic taste in my mouth its gone away and come back but i havent tasted it in a few days.