Pregnancy is most likely to occur during the fertile window, which is usually about 10?16 days after the first day of your period; since your menstruation started on December 3, ovulation may have occurred around December 13?19 (depending on your cycle length), and having unprotected intercourse during this time gives the highest chance of pregnancy, though cycles can vary from person to person.

No, you should not take Metformin on your own just to get pregnant, as it is mainly used for conditions like polycystic ovary syndrome or diabetes and only helps fertility in specific cases. Taking it without proper diagnosis may not help and can cause side effects. If you are trying to conceive, it?s best to consult a gynecologist for proper evaluation and safe treatment based on your condition.