Dear Doreen789: Adjuvant therapy includes all therepy - chemotherapy, herceptin, hormone therapy.
It is manly the hormone therapy..Any treatment for cancer (chemotherapy/ radiotherapy/ hormone) in not safe for preganancy. Herceptin can cause decreased amount of fluid between fetus and uterus (amniotic fluid) but after 6 months its rik is low while tamoxifen is teratogenic (can cause developmental abnormality in embryo). It is wise to wait for 2-3 yrs after completion of therapy.
Bets wishes.
Dr Tewari (India)