Spotting at 9 dpo, early AF due to traveling or IB?

[rainbowskin]

My cycles have always been between 27-29 days consistently. Today, I'm on cd 24, 9dpo and noticed light pink and brown spotting on the toilet paper. I usually have cramps before aunt flo, but I haven't had any at all so this is just odd. I also just recently traveled cross country by air.. could this have stimulated my period to start early?

 

[caz & bob]

may be implantation bleed I had that and when I tested 13 dpo got my bfp with my dd xx

 

[Tripledagger3]

I had that happen when I travelled

 

[Boo44]

I had a random period start when I went on holiday in May - I'm so pleased to read this as I was totally confused when it happened!