for all those due to test, I've been playing on the internet, (should have beenworking but hey!) and i found this....
" An average hCG for a singleton at 18 days post-ovulation is about 70 mIU, a twin gestation is about 200 mIU at the same day. Though this is not a foolproof way to detect twins. "
" An average hCG for a singleton at 18 days post-ovulation is about 70 mIU, a twin gestation is about 200 mIU at the same day. Though this is not a foolproof way to detect twins. "