14dpo with BFN

Hello ladies I'm 14 dpo today with 3 negative test at 10 12 and 14 dpo. First responce. I should have had AF yesterday my cycle is very short about 25 days and is always on time I usually have a very heavy period and bad cramps for the first 2 or 3 days. I have slight cramping so I thought I would get it today but nothing still my cmbis thick white kinda waxy no smell. But other then slight cramps I seem to not have any symptoms at all. Do you think I should wait andbtest again or do you think because of the negative test I'm out but either way we are fine with what happens I just started a new job and maybe some stress with knowing if I am or not pregnant is causing my period to be late. I also do an extreme sport BMX 3x a week and I herd that could delay my af so I'm not really sure what to do !!!