Is my milk drying up?

Michelle • Ruby 💕
My baby is ten months old and has been a little fussy lately. I figured it was just because she has a tooth coming in but two nights ago I pumped on both sides and only got 2ounces total. I'm terrible and hardly ever pump because I hate it but the last time I pumped several weeks ago I got 8ounces and pretty consistently would get at least 5ounces any time I would pump before that. This morning I woke up to find my period has returned (😭) so I'm not sure if that has anything to do with it. Does it sound like my milk is drying up? I'm a first time mom and I'm totally clueless.