Hi !!
The best time to talk to your partner about abstinence is
B- when people are reaxed and confortable, so they should be able to speak about this subject calmly, peacefully and quietly.
After having sex could be misinterpreted..
At a party with alcohol , no way, people will make fun at you
When the feelings of atraction are the highest, you normally don't want to speak about abstinence..
hope this helps ☺☺☺