I had sex on the 12th and I took Plan B pill on the 14th.. I had my "period" on the 18th and my cramps had hurt alot.. I thought I was okay until I had symptoms like nausea, headache, acne, having no energy, nasal congestions, clear discharge among with minimal blood, a bit of bloating, blood when i pooped and burping on the week of the 26th.. I am concerned that I am pregnant..