I turned 30 years old in April and since then my cycle has been very off. Since i was 15 years old my period was on a 27-28 day cycle. Like clockwork!!!

June was 28 days, July was 33 and now its 34 days and still no period. Can this be a age thing or a pregnancy thing?
My boyfriend & I are active but use condoms.
My only symptoms are cramps, waking up in the middle of the night (which I never do) & been pretty emotional.
I actually don't have much of an appetite & my boobs don't hurt.

Has this happen to anyone else? Did your cycle suddenly change as you got older? Are the odds better that im pregnant?
I would LOVE some feedback or advice! Thank you!