Confused

Megan

So my periods are very regular. This last cycle threw me off a bit my period came 2 days early and lasted only 2 days. When is usually 3-5 days it wasn’t as heavy as normal..: now a week later I am having some spotting which is orangey in color and light flow. I’m confused as what is going on exactly. I did take a pregnancy test last week and it was negative. And I am also not on birth control as I’ve been trying to conceive for 8 months now. Any insight???