Can you get pregnant from pre cum a day before your period?

Unlikely: If you had intercourse without ejaculation the day before you began bleeding secondary to your menses, it's unlikely you would become pregnant. However, anytime a woman has unprotected intercourse, there is always a "chance", no matter how small, she could become pregnant.

Very unlikely: but never say never. Always use protection if not ready for pregnancy.

No: If you are getting your period, you can't get pregnant.

Highly unlikely: If not ready for pregnancy – use protection every time.