3 dpos after clomid round 1

It is hard to wait to test I have been cramping since I start clomid to now and it is kind of hard. I'm exsausted also alot of pain in my breast wich I know is to early for pregnancy Syntoms also my birthday is on sep 9 it will be so nice to be pregnant at my birthday!!! But how you can be positive when you have 3 years of ttc and getting all negatives 😣😣😣