AF lasted only 1 day. Anyone have an ideas ?

So I had AF 4/14 only one day. Medium to Heavy flow. I spotted brown 4/11-12 and again 4/16-17. I usually do not spot and have a 4 day flow. Well I was fertile this week suppose to ovulate yesterday I don't do OPK or BBT. Just follow my CM. Well there was none. I am super emotional and sometimes get this nauseas feeling but I assume it's bc I drink to much coffee in the morning and don't eat. Should I test or just wait my 2 weeks and see if AF shows up again.