I don't think it's all that unusual to have an extra long or short cycle once in a while. Plus it can take a while for your body to regulate itself after BCP. I would test again in a few days if still nothing has happened.
It's really unsettling to have all the unpleasant symptoms without the actual period. I have cried at everything for over a week, cramps keep coming and going, and I am both super bloated and sweaty : (
I took me almost a year to get my period somewhat regular.
Do you remember what your periods were like before BCP? If they were somewhat irregular before BCP then they may be that way now and it can take awhile to get normal.
I now chart because I am irregular and I would go crazy without temping.
My PMS symptoms were so much more severe once I was off of BCP. Likely that is what is happening and you are still regulating. Ditto everyone else in saying test again in a couple of days if nothing happens.
That's right around the same time frame that my cycle started to lengthen. I was 28, 28, 28, and then bam, 30 something. It regulated more after a few more months.
A sort of update: still no period, still feel like they're about to start. Day 34 and 3 negative tests so far. I had a blood test scheduled this morning so I asked them to tick that box too in case, though I very much doubt the 3 tests were wrong.