Period or implantation!?!???

Kenna • 💍Married 10yrs. Cervical cancer survivor🎉. Babygirl 🤱 born 2/27/18. Babyboy born 5/19/20 👨‍👩‍👧‍👦. Baby #3 due April 23’🤰🏼

Hey everyone!! So I think I got my period back after 16 months PP. But...... it is so light almost more like spotting could this be implantation bleeding not a period? Anyone else have a similar experience? And it was a period just very very light????