My clinic want me to have this to stop ovulation as I'd ovulated by day 10 on a medicated cycle and by day 6 on a natural cycle. But they want me to take it a week before period yet I'm irregular so how will I know? The other thing confusing me is the effect on pregnancy. It says on it that it musn't be taken if pregnant so why used just before a FET? And does it really have to be done by a nurse, in buttock? Oh it's just continuous delights... 😂 ðŸ˜