Legal Question in Family Law in California

I know it is really hard to avoid paying child support if she decided to keep it. Parents cannot waive child support.Kristine M. v. David P. (2006)135 Cal.App.4th 783 , 37 Cal.Rptr.3d 748

You can terminate your right but unless they are adopted, you are can be on hook for child support.

The only way to avoid a future finding of paternity, which puts you on the hook for child support further on down the road, and struggles over visitation and custody, is to use artificial insemination under the supervision of a licensed physician and surgeon.

The previous answers are correct. My partner and I wanted to have a child that would be entirely legally hers (her choice). We had all the paperwork drawn up and were using artificial means. The "medical intervention" didn't work at first, so we decided to "take a break." The next month she got pregnant the old fashioned way. When we went to her lawyer to have the paperwork modified we found out that when the pregnancy is by sexual intecourse there is no way to "opt out." I can't say if she is trying to scam you or just doesn't know how the law works, but DO NOT conceive a child by natural methods unless you want and intend to be the full-blown father, all rights AND obligations included.