Thank you for your query.
A partial septum in uterus
can cause repeated miscarriages or preterm labour, but would not lead to absent cardiac activity in fetus or ectopic pregnancy
If you have decided to go for IVF, I guess complete assessment of your condition has been done by a reliable Fertility
specialist before taking this decision.
You are quite right, that the previous hysterolaparoscopy should have definitely revealed a partial septum if it existed.
Could I ask how the septum has been diagnosed now, without a hysteroscopy
if your current doctor has asked you to go in for hysteroscopy before IVF, please do so.
The ideal time for getting a hysteroscopy done is 3 - 4 days after your menstrual period.
Please do not stress
out, as it will negatively impact your fertility.