Thanks for writing in to Healthcare Magic!
The sperm may not squirt if your mood is not good or erection is not proper, anyway is does not affect fertility
You said you never had sex, if you also did not have blood component transfusion
, nor a IV drug abuser then you are not having HIV
The white deposits under the prepuce are secretion of penis glands which are getting collected because your foreskin is not retractile, for which you should consult a surgeon in your locality to get the local problems evaluated and if needed corrected.
If you have any further query please let me know I would try to answer it for you.
Wish you a great health!