literally I can't

El
So my cycle is always 27-29 days long. My af days are always 4 days long, spot on. Howeverrrrr- last month I had a 33 day cycle & all hpts were negative but my boobs were huge and I was peeing all the time (in fact I noted every 8-12 minutes). This month, I'm currently on day 33 and no symptoms which I guess is fine except for fatigue and no cramping. Is it weird that in a time when we're ttc we're hoping that af begins just because of this weird situation? Like for the last year and a half, I've had a strict cycle but last month my body was like "hey, we're going to fuck around and throw you off-you'll be fine". 
Yeah I've been somewhat stressed but my diet and exercise are the same, my sleep schedule is the same, so what could it be?
Anyone else experience this?