Weird symptom alert! Help!

ya

So today I’m 10 dpo, Af due either Wednesday or Thursday. At 8 dpo I noticed blue veins covering my body head to toe and yesterday I’ve found my vaginal walls were SO swollen I could barely get my finger in there, cervix is high and also swollen from what I could reach. I had a bfn negative today and I have never noticed this before?? Me and hubs haven’t bd in about 4 days so I know it’s not that. Could this be a sign of a bfp? Af even if I’ve never had this before? Cancer? I’m low key freaking out about this!