I appreciate your query.
Firstly, you are not sure of the exact date of unprotected intercourse
Moreover, the failure of the calculation of the safe period method is 25 %, sometimes more.
The days of ovulation per cycle may vary.
Hence, yes, theoretically, there is definitely a possibility of pregnancy
I urge you to go for a home urine ( HCG
) pregnancy test at the earliest to confirm pregnancy.
Moreover, please use a barrier method of contraception
in future, as it is safe, and also prevents against sexually transmitted diseases.
All the best.