Well you had endometriosis
and undergone a surgery for the same, 5 months ago.Well you didn't conceive within one month of clomiphene
citrate. I think since you had already one surgery done 5 months ago you should try pregnancy
with gonadothrophins and if requored go for IUI for 3 to 4 cycles.Alternatively you can go for lupron
injections max 2 to 3, but they will only supress your disease and may not cure them permanently. you may have ammenorrhea ( absence of menses) for a few cycles which is normal after the injections , and still some pregnancies have been repiorted during the period. You can again go for stimultion and IUI after you resume menses .I think your doctor has opted for the second one.A redo surgery or an IVF can be thought of later and not now, if all these fails.
DONT WORRY and please take a second opinion
if you are too scared.good luck