Sugar and salt pregnancy test is true .it gives  correct result.ihave done 3iuiin 21november.ihave irregular periods.iam under the tretment of fertility.afterviui doctor prescribes me duphaston 10mg fordaily  15daysdaily twice.it makes delay period or it is a chance of pregnency.my period date i s 5december.ichecked my pregnancy with sugar and baking soda.idont know wheather the result is true or not.it negative.idont have any symptomsup to now.some times lightly stomachpain happens