Do you think i am experiencing a chemical pregnancy? Or am i just bleeding during the first trimester? Help pl?

This cycle for me I just knew that i was going to get the answer for bfp that I wanted. My last cycle began on May 19th in which i am never late. My ovulation day was June 2nd and me and my man also baby danced on May 29th to make sure. Maybe a week following that i began to have symptoms of my being very erect and tenderness. It felt like the pain was coming from underneath my underarms. My cycle was due to come on June 16th but did not arrive instead i was very constipated and also experienced what i beleive to be morning sickness, vomiting that morning. I told myself then that i was going to test a week later to be sure i really missed the cycle. I also had 2 dreams that seemed two real i wake up may 3 times during the night to use the restroom which i was not doing before and I have lower backaches. I hate when people list all these symptoms all the time on here but i just want you all to get the who picture. While at work on June 18, 2010 i got what i beleive to be my period. My sister says i should still test because the thing just does not come out of anywhere and its possible to still have bleeding one of her friends just has a healthy boy had bleeding she thought was her cycle for 3 months before realizing she was preggo. But my are no longer that sore. Do you think i may of had a chemical or should i test anyways.