Hi and welcome to HCM..
I thank you for posting your query here and I'm definitely going to help you out..
I being a surgeon, we encounter so many such cases day in and day out.
And I suggest you not to worry about this..
I read your question completely and have understood it well enough..
Well, I will analyze all your points and provide necessary explanation..
1.
Masturbation 12 hours before, this definitely reduces the semen quantity and hence sperms.
And urination has no role in preventing
pregnancy...
2. Dry sex. No Penetration.
Well, in this scenario. There is absolutely no chance of pregnancy.
3. For successful fertilization, there should be adequate amount of semen ejaculated inside of the vagina.
This didn't happen in your case and hence suggest you not to worry about it..
4. Safe distance from vagina during ejaculation.
This again tells that there Was no way, the semen would have entered inside of vagina.
And hence, no chance of pregnancy..
Well, that's it my dear friend.
Do not worry.. Chill out..
Hope this helps you, in case you need any further assistance, please let me know.
Take care and God bless.