IUD removal

Lucy • 26 years old, mother of a beautiful five-year-old, partner of 10+ years.
I had my IUD for 5 years and finally had it removed May 19th while on my last days of my menstrual cycle. June 1st I started getting really bad cramps that I had to go home from work. I've never experienced cramps that bad/ intense it was so bad that I felt nauseous, but no period yet "6/5". 
I took a pregnancy test that same day and it came out negative and retook one 2 days later and still negative test. Can I be pregnant? Is it too soon? I have been having really vivid dreams lately is that normal?