I took two at home pregnancy test that came out positive on Wednesday March 31st and they both came out positive. I then went to the doctors office the next day on Thursday April 1st to get a confirmation I took another urine test and it came out positive. The doctor predicted that I was around 4 weeks. I had very light bleeding that then started to come on to a little bit a a flow not to much like a period though. For the past few day I have been feeling very nauseous so I was seen today on Saturday April 3rd at the ER due to the fact I couldn’t hold down fluid or solids. I told them I was pregnant and showed them my doctor confirmation they proceeded to do a blood test and they said it came back negative. They told me to test writhin 3-5 days. I have been very confused if anyone could help me out it would me a lot. What could be the reasoning for this.?