Spotting while breastfeeding

Ive been breastfeeding for 14 months, I have PCOS if that helps answer this question. I have had 2 periods since having my baby, they were 3 months apart. Last one was the first week of July. I have had bad cramps the last two days with a tinge of pink spotting yesterday and a tinge of brown today. I didn’t think I ovulated this month because I always can tell by my CM. Anyways, does this sound like implantation or a cycle trying to start? (I didn’t have implantation bleeding with other 2 babies, but I also wasnt breastfeeding) I have not spotted before.