hey michelle
good luck with your first GIFT cycle!
not sure about the spotting, but no difference injecting into your thigh than your stomach. Might be worth ringing your clinic just to make sure that all is good RE the spotting. I didnt get any on syneral or pergon. Maybe AF is just taking a bit longer to finish. I am sure that you will be going for plenty of scan soon anyway to make sure that lining is fine and drugs are doing what they should, so as long as they are happy with that , all will be good!
take care and good luck on the rollercoaster!!!

ODETTE