had IUI, hcg level is not what it should be.

Hi,
Welcome to ehealthforum,
It is difficult to say whether the rising HCG level is due to the HCG shot or due to pregnancy. Consider repeating the serial HCG test after a week along with repeat ultrasound scan (preferably transvaginal) within next 1-2 weeks time to confirm/rule out pregnancy (or the IUI success). If you are not successful in getting pregnant with 3-5 cycles of treatment (Clomid with HCG trigger injections), assisted reproductive techniques like IVF or ICSI could be helpful; in which, normal healthy sperms (from your partner) will be selected and washed to be fertilized with the egg, and then the embryos will be transferred to your womb. If you are trying for pregnancy, monitor cervical mucus changes and the BBT (basal body temperature) charting to predict your ovulation (along with the follicular study) and time your intercourse for having fruitful results. Have intercourse in positions that allow for deeper penetration for high deposit of semen. Have diet with foods rich in zinc content to ensure better maturation of egg and sperms. Take adequate rest. Drink plenty of water. Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately.
Take care.