Help, lol.

So my period is about 5 days late. Pretty regular at 28 days. The 10th is the only day that my husband didn’t pull out. The two others he did, we have done this roughly 7 years and no surprises yet. But the 10th was so close to my period so didn’t really think anything of it.

I have on and off nausea, some cramping which usually only comes after I start. I have taken two test a blue dye(yea I know, it was an accident) and a pink dye $1 one. They both were negative on the 2nd and 4th, random urines. Never really hear about false negatives, especially after a missed period. Input?