Thanks for your query.
Mild spotting is common sometime during the cycle.
ALso, while using the applicator, a bit of cervical bruising could occasionally take place.
After IUI, mild spotting also happens naturally as the cervical canal and uterus
have been handled.
DO not worry about it.
Continue using the Naturogest
medication, and be gentle while inserting it vaginally.
IF spotting recurs or persists, you consult your doctor and switch over to oral medication or a vaginal gel.
Take rest and be gentle with the intercourse.
All the best, and I hope the IUI yields favourable results soon !