Thoughts?

So I have been on BC since May but this month I missed it on the 2nd, 4th, 5th, 6th, 7th, and had sex on the 1st which that night I did take my BC. Started bleeding the 9th from what i figured because I missed so many pills. It was light, but also red. Stopped taking BC all together on the 12th and the 16th got my period which is also light and almost done now. However, I've never been nauseous during my period or before. Which is quite severe along with lower back pain. I'm not necessarily preventing getting pregnant, because my husband and I have talked about having another one, but should I test or wait until my next period? Anything would be greatly appreciated!