PPD

I've been having a rough few weeks.  One minute I'm fine, the next I want to cry.  Most moments I manage to keep it together, but there have been a few days in which I've just cried for a while.  I am, as I've blogged before, a crier, but it isn't like me to sob for an entire morning.  Archer asked me how I was doing yesterday, and I said, I feel like I'm having good days and bad days.  He asked if he could make an observation, and I said yes.  He said that my cycles are more regular following George's birth than following Wild Man's and Bear's.  He has noticed that I am more uneven than usual about a week before my period starts and at least three days into my period.  I immediately knew he was right, and now I'm trying to keep track of my cycles.  Prior to having Wild Man, I was on the pill, and I was also on the pill immediately following his birth as well as Bear's.  While I primarily took the pill for birth control, I found that it helped regulate the hormonal shifts I seem to be experiencing lately.  I told Archer I may go back on it for that reason, but then I don't want to do that.  So I started doing some research.  Now I wonder if I don't have a late-onset PPD.  I know that mothers can experience PPD up to a year following the birth of a child, and I'm still within that time frame for George's birth.  But honestly, all the descriptions are so different.  Do I have the Baby Blues (a term I hate, by the way, as it is just so dismissive) or more severe depression?  Or am I just tired and struggling to compensate for a lack of sleep?  Most of the time, I feel like myself.  I feel good.  But several times a week I have an urge to just cry.  But then, so do most mothers I know.  I mean, parenting is a hard, hard job.  It is exhausting and draining, and it can be demoralizing.  It's full of high-highs and low-lows.  Mothering is an emotional roller coaster in and of itself.