TTC - does traveling have an affect?

My husband and I have been TTC for the last 6 months.. I already had a planned vacation out of the country with my mom from 10/29-11/8 and AF is due today 11/10. I took a test the day I came back 12 DPO and it looks to me like a BFN.

AF still hasn’t came yet, but my sense of smell is so sensitive and I have slight cramps (and I never get cramps.) I also have this weird yellowish cm. Do you think because of traveling/flying/jet lag my body is just adjusting to the time zones which is causing a delay on my period or do I still have hope?!