Hello dear
I understand your concern
There is less chance of the
pregnancy as you did sex in the safe period of the cycle.
Just one day delayed period by one day not signifies the pregnancy.
You have to think about the period when your period will delayed period by the 8-10 days.
Pregnancy test will give positive result after 8-10 days of missed period.
Pregnancy test after 1 day of delayed period give false negative result.
So if period will delay by 8-10 days then go for pregnancy test.
Your period could be delayed due to PCOS or
thyroid status.
Progesterone tablet will helpful to induce period in abasence of the pregnancy.
Avoid
stress, do regular exercise, and loose your weight if you are
obese,
eat healthy diet.
Hope this may help you
Contact HCM for further health query
Best regards
Dr. Sagar