I am on Lo Loestrin Fe and last pill pack I accidentally skipped two white pills and two blue pills. I consistently have unprotected sex with my husband. A week after my last period I had slight spotting with brown tissue-like discharge and white like mucus along with cramping This lasted a few days. Now I’m moody and nauseous in the morning. I’m due for my next period in three days. Should I be concerned for pregnancy?