Ladies

Ladies I found out I am prego so early my HCG levels were 15.6 then 68 then 177 then 507 Now they are 1400 they still don’t see anything in ultra sound. I went into the Er and they like we don’t see anything I might be prego in my tubes which made me worried but I have no spotting no bleeding no nothing just when I though my stomach it feels tender should I be worried ?