cd19 firs round of clomid

So I posted yesterday about possible having very early symptoms like 3/4dpo. Today iv had lower back pain and also cramping like af but obviously it's not due. I'm so tired. And not had a good appetite for a few days. I usually binge on chocolate crisps sweets throughout the day. But I just haven't even wanted any. I am so so tired iv been in bed for 9/10 pm every night even weekends I just can't stay awake. I have day 21 bloods on weds so I will see if the clomid helped with ovulation. I never get sore boobs mid cycle. And there so sore. really hope this is the month. Been try with my fiancé for 2 years. And for 5 years previous with previous long term partner.