We all celebrate life.
What that DOES NOT mean, is that we think it is wrong for people to use contraception while having sex as that prevents "life" from happening that you can then celebrate.
I guess i should acknowledge many religious nuts do think it is wrong for people to use contraception for that reason and would use the power of government to prevent them doing it, if they could as they are like you and wrongly recognize the POTENTIAL for life, if allowed to proceed unobstructed, as a baby.