Tiamiami -It depends on the trigger strength

5000iu (IVF dose I had) is said to stay in system 7 to 10 days - 500iu they still say up to a week ... to be on the safe side

Your symptoms sound great Goodluck - either way if you last HCG inj (trigger) was on 13th - it is 10 days today - I am taking a punt you have either tested or want to ... use first morning urine if you do for best results.

I wish you the best of everything - but remember though if it is a BFN the HCG level might not be sufficient to register on HPT ... most IVF clinics only test on 14dpo - where they like to see levels about 100.

I know several ladies who got BFN on poas (HPT) the same day they got positive BFP on bloodtest ... they are now holding their babies in their arms.