Pregnant?

Is this implantation bleeding? It’s not very much.

My periods are normally soooooooo heavy, it’s 5 days late now and me and my boyfriend had unprotected sex and he did cum in me around 10 days ago. I’m getting this discharge.

I’m also feeling so sick and vomited a bit i don’t usually vomit during periods or feel like this and my boobs are so sore!