Thank you for your query.
Please do not panic or worry.
The pain could be because of the stimulation and support injections and drugs given to you.
Watery discharge is also common due to multiple medications, however you need to see your doctor to rule out an infection.
There is no way to know if the IVF was successful till your scheduled date for the BHCG test.
Until then, worrying will only cause stress
Please consult your treating doctor to know the reason for the pain and discharge.
COntinue medications as advised.