Menopause at a young age or..?

So, for the past two months atleast a week or so before my period starts I start to have dryness, itchiness and irritation down in my lady bits. Everything I have read say that it could be a yeast infection if I am having discharge (but I'm not) or it could be Menopause or a drop in my estrogen production. Mind you I had a baby almost 7months ago and a tubal done.