How common is the hook effect ? And if I am pregnant that means I would be about 11 weeks. Could I feel movement in my stomach? I have 1 child already so this would be my 2nd pregnancy (if I am pregnant). Also, I had a blood pregnancy test and it came back negative. However, the veins on my stomach are turning really dark, I am still light headed and dizzy at times, and I have this fluttering feeling in 2 different spots in my stomach like I have to babies in there just moving around. Is this possible or is it just in my head?