When is my next fertile window? My next period is due on 26.1.13. I have a 28 day cycle and my last period was 29.12.12. Ttc, 18 years old. Thankyou!

You will. Ovulate about 14 days from the first day of the last period and it takes a while for sperm to reach the ovum, thus they live up to 7 days. Consider intercourse in some way that has sperm there when u ovulate, say day 9, 11, and 13 after the first day of the period, it's already passed this cycle but who knows, check a upt if u skip a period. Gd luc.
Depends . If you continue regular cycles, then your next ovulation should occur ~14 days before your next period. That would put fertile window between feb 6th and 12th at the widest margin with the 9th as the midpoint or 14th day.