I am 28 years old,had miscarraige six months back,and started trying to concieve from last month onwards,my period was due on 8th may,though my periods are irregular,last month i had periods on time,i got my ovulation study done,according to doctor i ovulated on 21st day and we had intercourse twice for 48 hours to concieve,but till date i mean its 45th day and i did not get my periods and home kit also shows negative,according to my doctor this day kits are accurate and i may not be pregnant ,but i have no symptoms of period nor pregnancy ,my thyroid is also normal i mean i do take medicine but its controlled,very confused please advise