Help Please

So I got my implant in on July 9th. I’ve waited over a week to have sex (with condom). I had my period on July 30th and it stopped after 5 days but after sex the other day I started bleeding again...I am still bleeding. Not a lot but enough to ruin my underwear. Is this normal with the implant? Should I get it checked out. pregnancy in anyway? It’s just not normal for me to have bleeding longer than 5 days.