I am really worried because on January 25, I had unprotected sex during the months of January, February and March I used Tylenol cold and flu, for cold symptoms. cyclobenzaprah to help with my appetite, cigarettes are just a bad habit that I picked up from my spouse and marijuana plus Methacarbamol that helps with my energy and fibromyalgia. I also tried alcohol occasionally but small amounts. In March I had a MRI done because of constant pain on my right side. They found a spur. I visited my chiropractor three times a week. Then later found out on 4/15/13 that I was three to five weeks pregnant. The emergency room did not tell me a due date or anything. I had been feeling like I was pregnant prior to the month of March and April but the doctor was like no your not. Is there anyway that I could have been pregnant and harmed my fetus? I went to the doctor several times and they did a ultrasound,pregnancy test blood and urine, and even a Pap smear no baby but, I was having nausea, body aches along with severe constipation. Now, I'm pregnant please help me.