Helppppp

So .. my period came 3 days early in October, unusual as I’m always on time, and usually bleed for 4-6 days, I bled for 2 days exactly light bleed, didn’t really need a liner if I didn’t want to , I did have intercourse and my partner pre-cummed (he never pre cums & had to pull out quickly) I did a test a a week after up until today , it’s still negative , should I be concerned? Keep in mind I had a pregnancy loss early this year .. is it possible to show false negative?

Blood test would be the last option

I did a test today and this is what I got, see the photos I uploaded.