If you were having 28-35 day cycles previously, you should be around 6-7 weeks pregnant now. Fetal pole
usually appears at this stage and fetal heart may be made out by a trans-vaginal sonogram. Yet, sometimes the presence of fetal pole may not be visualized early, so, you should go for a repeat sonogram after 1-2 weeks. All other findings are normal. Please get further advice from your doctor. Take care.