Been feeling quiet sick here recently and took a pregnancy test .. it came out positive instantly and as soon as i sent it went for a urine test . The results came out negative even did a ultrasound... driving home i bout three test and all ended up positive i will be 4 weeks pregnant but reading everything about chemical pregnancies and no heart beats I’m scare . My symptoms are nausea a pressure in my abdomen like my period is going to start and that’s it . Should i be worried am i freaking myself out ?