Help!!!!!

Ok, so my cycles are ALWAYS 28 days. I ovulate on cd15. I'm 5 days late but I have only had bfn. I just had some very very light pink and brown discharge ....

So my question is, can implantation spotting happen this late?

I went to the doctor's for hcg beta bloodwork on Friday but they closed early so I have to wait until Monday for results.