TMI Is this implantation bleeding??

Ok so I’m currently 9DPO and I started spotting since yesterday. Only when I wipe it’s showing light red and brownish as the day progresses. Yesterday I had a chunk of discharge that was dark red(almost black in color) come out. The image here is minutes ago. There is still more discharge and I’m afraid it’s implantation bleeding. Does this look like it as well to anyone else. I currently have three kids and didn’t want anymore and me and the hubby messed up on my bday🤦🏽‍♀️🤦🏽‍♀️😩. Worried I may be pregnant. I’ve been moody with back pains and cramping with breast tenderness. What do you guys think???