Irregular Periods & Fertility: Understanding Conception Challenges

Question
Hello.  I am 26 years old an have no children.  My husband I have been married for 6 years.  My last menstrual period started January 11, and I feel like I will be starting again today or tomorrow (Feb 5 or 6).  I went off birth control pills in November of 2002, but we used other birth control until May of 2003 so I could get my cycles regulated.  My cycles were surprisingly regular (28-29 days) from the beginning up until October of 2003.  They have went from 28-29 days to about 20 days, and just keep getting shorter.  Also, we have obviously been unable to conceive, despite a clean bill of health from my doctor in February of 2003.  We have no other special circumstances that I can think of, we are both healthy, do not smoke, drink or do any drugs.  My husband has a daughter, so I think our problems conceiving are mine and are possibly related to my strange cycles.  I am planning on going to my OB/GYN soon, but we are between insurances right now.  Thank you for any help.  

Answer
I don't see any abnormality in your cycles. If your last period started on January 11 and you have a normal 28-29 day cycle, you are due for your next period on February 7  As long as you have a period that is 26-29 days from the first day of your period until the first day of your next period, it is considered normal. YOu probably are ovulating around cycle day #14. YOu can become pregnant if you concentrate on having intercourse on cycle days #13, 14, 15, or 16, each month. If you are unsure, send me a list of the first day of your last 6  menstrual periods and I can tell you if they are normal or not.