chromosomal anomaly

Dear doctor.
I am 39 years old and I have 5 healthy children aged between 19 to 7. In the last two years I had 4 miscarriages in between the eighth and eleventh weeks of the pregnancy.Every time before the miscarrige there was a discrepancy between the actual gestational age and its age according to the ultrasound  .There were 4 other occasions during this time when I had positive pregnancy test but after a week or so I had my period (with heavy bleeding)in about a week after the regular time which brings the total number of aborted pregnancies to eight!I received two opinions about my condition and the course of action  I should take if I want to have another healthy childe.Both agree that most probably my miscarriages happened as a result of chromosomal anomaly, but one opinion states that this anomalies are mostly random and regards them as a "bad luck". According to this opinion I have no more risk than any woman in my age to have an abnormal child and there for I can just try again and to hope for better luck. The second opinion holds that the number of my miscarriges suggests parental chromosomal anomaly and since we have 4 girls and only 1 boy he particulary suspects my   husbands chromosome Y and suggests not to do anything before we have tested our karyotypes
My questions are
1 whether checking our karyotypes is likely to give us clearer picture and more precise prediction about the outcome of another pregnancy
2 That is my main question! Does my condition indicates in any way that I have more chances than any woman in my age to give birth to abnormal child?

[Christie2004]

Simply due to your age alone you are at a higher risk of having a child with a chromosomal abnormality.  Perhaps a consultation with genetic counselor could shed some light on what might be advised in your particular circumstance.

The number of miscarriages you have had is abnormal, and would seem to warrent some sort of genetic investigation if you are truly wanting another child.

[Christie2004]

Sorry, there are no doctors here to answer questions.  This is a patient to patient forum only, for support.