Welcome to HCM.
You are 38 yrs old with 2 girl baby.You are trying for a baby for 1 yr.
Currently you are suffering from Secondary Infertility
First thing,do a fresh SEMEN ANALYSIS
for your husband.
Then check report and if any abnormality in report,treat him accordingly.
On the other hand if Semen report is normal,then you have to do some investigations like USG lower abdomen,FSH/LH, Thyroid
profile,PPBS and HSG for tubal patency.
Along with take healthy diet,do light exercise, sleep enough, avoid stress
and maintain personal hygiene.
Do all thing,then consult with your gynecologist or with me.
All the best.
For more information,mail me....firstname.lastname@example.org