Hello there,,
Well yes your pull up was not proper...also your body gave you signal that the movement is not occouring correctly but you went ahead with the pull ups inspite of pain....however it doesnt look to be a major injury as such...you might have pulled up a muscle and the tendon may have become swollen.
Next Steps
complete rest to wrist,no putting weight on wrist or straining it for at least a week.
if at all you have to go on bike...use wrist band.
Health Tips
get back online for furthur questions and treatment plan.
regards.
Dr Raviraj Francis
MPTh(Rehab),MPT(MSk).UK