Is this implantation??

Cometrius • Getting married in June i have two sons Zion who passed away while in labor back in 2004 and my Rainbow Baby Aiden who is almost 10.My future Husband has a son and daughter Pj and Zion,ready for #4
So AF was due yesterday she came well maybe,1st day so lit was light I wear tampons bt it was so light I put on a liner and went to bed...And Nothing... nothing on the liner just brownish on the tissue when i wipe...this is weird to me when im on the next day its full on.what do you think ladies TTC for 4 months Now 😥