First cycle of clomid

J • Twin mama 2021❤️ after ttc for 3 years🙏🏻

I’ve been on femara but no success so we switched to clomid..

I was wondering why on my prescription it said 5-9 but just to make sure one nurse asked was it 3-7 or 5-9... I wanna know what the difference is and what was more successful with anyone who tried both???