Dear Ma'am,
Thank you for your query regarding sonosalpingogram and it's relation to embryo toxicity.
The evidence regarding the effect of the radio-colloid dye on the developing baby is theorotical at best. The conception in the same cycle doesn't lead to miscarriage,on the contrary some of the oil-based colloid dyes (lipidiol) enhance chances of fertility in unexplained subfertility. Rest assured the reports you have read online are only anecdotal.
The only thing that gynaecologists ensure is that you are not
pregnant at the time the tests are done. So I guess the timing of your test was perfect. Also ensure that your husband's Semen analysis is normal before proceeding for any further testing.
At 27 years, if your cycles and tests are normal, start on folic acid supplements and try normally. The chance of conception within first year is 85 percent and 95 percent at the end of the second year. Per cycle every women has a 15-20 percent chance of conception.
Do let me know if there are any further queries.
Best Regards,
Aditi