Spotting No period while BF

Kristina • Mama to 2 beautiful baby boys 💚 Nov. 22nd 2016. Oct. 22nd 2019

Has anyone dealt with not having a period until 12 months PP still breastfeeding a lot, having some cramping and spotting once while going pee and then nothing after that? It was bright red. It's been like 3 weeks and I thought I was going to start my period or maybe implantation bleeding but it's been almost a month and no period and negative pregnancy tests. If you've experienced were you pregnant or just a weird random spotting incident?