HCG Shot too early, cancel cycle?

Is it possible for the HCG shot to work even if done wayy before I would naturally O?

I'm kind of worried.. My dominant follicle was only 18.5mm when my RE told me to do the hcg trigger that night (tues).  So I did it - and I go in for my IUI Thursday morning.  The thing is I don't think the shot took, Like at all.  I did it right but usually in the past (with clomid) I've had strong O pains and I knew I was o'ing b/c I felt it.. With this I feel absolutely nothing, AND my natural Ovulation doesn't happen until cd 16, I did the trigger cd 12, So very early for me.. This whole thing feels so rushed.  I feel so dumb for listening to her,  I had plenty more follicles at 16-17 right behind the big one, I should have waited until my natural surge..  So I don't think I will ovulate anytime soon - my cm isn't right yet, and I just took a HPT 24hours after the HCG shot, faint faint positive,  So either I metabolized the entire shot already, or it didn't even absorb.   Will the HcG work even if my body isn't ready for it??  I go in for my IUI tomorrow morning but would it be smarter to just call and reschedule 2 days from now??  HELP!!

[andria_luvs_her_boys]

You are going to be fine! Your follicle size sounds good! The HCG trigger shot will work, but you have to give it time... It takes 36-40hours AFTER taking it for you to O! That's why your IUI isn't till Thur.... You wouldn't want to O today and have IUI tomorrow!! And another thing to think about is that your follies grow 1-3mm a day so your 18mm will be over 20 and the 16-17mm ones will also be 19-20 which is considered mature...and with the trigger shot ALL the mature eggs will release!!!! With your natural surge, only one will release!

Give your doc some credit, I'm sure she/he knows she/he is doing :-)


I wish you the best of luck & lots of baby dust!!!

[lilmama09]

Thanks, reading that helped!.. I had the IUI this morning and I know I still haven't O'd so I'm just hoping those swimmers hold on! Do you think I still have a good chance of success if IUI was 36 hours past trigger, but I don't actually ovulate til 48 hours after trigger?

[andria_luvs_her_boys]

yes that's what happened my last bfp! Now I have a ds who will be 2 in nov!