help please

So last week I went to my doctor about how my bc was making me bleed for an entire month ever since I started on it. I know it takes a month to actually work but my husband and I kinda got excited and we had sex without pulling out. When I went to the doctor they had ran two different blood test a pregnancy and one to see if I'm anemic. My blood pregnancy test came back positive and they had called me right away to tell me. Well the person who had called me, dropped a bunch of bombs on me saying I may have an atopic pregnancy or the start of a miscarriage and then told told me I shouldn't be getting upset about it . We weren't planning on getting pregnant right now but the fact I found out and then the rest  afterwards of course I'm going to get upset. They sent me to the hospital to have an ultrasound done, the doctor there said it's probably to early to see anything. My doctors assistant had called me the next day saying there's no evidence of a pregnancy but there is fluid where a child should be developing and that they're going to check again in a few weeks.  Well now I'm even more confused as to what's going on is this just a pregnancy scare or is this for real. I haven't been able to take a pee test because of the spotting though that finally ended this past Friday. I am also scared as to if I'm not because my husband and I are pretty much happy about the though of having another. Has anyone else had this issue and what happened?