PLEASE!!! I NEED A SECOND OPINION!!!

So I went to the ER. I found out I was pregnant on Wednesday, May 25th and I didn't wanna believe it. Three tests in, and I was convinced! Thursday I went and had a blood test done early in the morning. They promised to call, but I ended up needing to call several different places multiple times just to find out my results. PREGNANT! So, I figured this to be normal, but after my mom and sister in law freaked out, I decided to go to the ER this Saturday for my random cramping. It's not frequent, and only stays for a minute or so. My clear blue test said I was only 2-3 past ovulation, but the doctor wanted to do a transvaginal ultra sound. They couldn't find my baby or the gestational sac in my uterus. Near my ovary, they claimed to have found a little mass (never showed me!!) they didn't have a radiologist is so sent me results to ATL where this radiologist said He didn't want to give an opinion and for me to be seen again in two days since they only had one HCG reading(-at 600). However, the ER Doctor and nurse tried to tell me it could possibly be an ectopic pregnancy or I could have a cyst. I freaked out. My husband freaked out. They had me at this ER for four hours. I was ready to go home. Now I'm trying to keep my sanity until Tuesday because they're already suggesting I may need to "take care of" my baby. The poor peanut hasn't even been around for a month yet! What do I do?!