If you had a full period one month then the next month you had a period that lasted a day when do you count your pregnancy from the last full week of your period or the period you had for 1 day?

The first day of your last normal cycle the one day of bleeding that you had was most likely implantation bleeding and that doesn't count that's just a signal that a fertilzied egg has implanted into the uterine wall I counted from the first day of my last normal period and had my baby boy 2 days after my due date...hope this helps....O and your doctor may be able to narrow it down for you a little more...Good Luck God Bless and Congratulations!!!