So I had intercourse on May 7th on a Sunday. I took the Plan B within 40 hours on a Tuesday. My last period was from April28th- May3rd. But after taking the pill experienced not much effects just a bit fatigue and dizziness. After a few more days I felt like nausea, more tired, lost appetite, moody etc. Then it's been a week and a few days after taking the pill. I started to feel some pain or cramp on my lower abdominal where cramps are usual felt and now I'm having spotting or light bleeding with yellowish/white discharge when I wipe. I'm wondering if this is from Plan B or is it a possibly the chance of Pregnancy?