I had intercourse last on 13th march, i did miss my periods.i did upt on 18april,5may & 10 may all came to be -ve.after consulting the doctor he prescribed me to take deviry10 for 7 days since i had periods last on 17feb and i have a history of irregular menses.after completion of the course i got periods on 31st may ( 10 th day of stopping the dose).and still now i didn't got my periods.i have again took deviry10 for 5 days. Should i fear for pregnancy?what tests should i do to get confirmation about pregnancy? Please help.