Should I even ask my bf

I been on my period really really lite for the past month! (I think it's the depo) so my bf and I haven't been having sex until recently, this past week & he's been tellin me afterwards there's no blood when he washes up and I've noticed the same with me...since we started sexin my period been SUPER lite / non existent but there's literally like a drop or two tht might decide to show up when I start thinkin about askin him for head..I meannn lesbians told me this particular situation I'm fine they would do and he be starring at 'her' like he want to but in the bck of his mind he's like 'blood blood'...should I just tell him I'm off finally ?? idk lol