Baby blues mood swings or just depressed?

Tee

I'm 23 weeks pregnant and I have had a past of depression.. how many women out there are just not feeling up to it? Like I have days I'm fine but then some days nothing makes me happy. I have no Christmas spirit and I just feel mentally drained I'll be 32 and this is my third pregnancy but it just seems this one is completely different and taking it out of me physically and mentally. I'm fine I have no thoughts of hurting anyone including my self I'm just in a down mood and it seems to happen quite often... Did anyone else go through this?