Just my opinion, which is worth less than $.02, but I don't think you stand
much chance of infecting your partner or a child through a normal
heterosexual relationship.  I had a 25-year-marriage, during which time I
delivered 3 children, and I had HCV when I got married (although I didn't
know it, of course).  My husband didn't have it and neither do my children.

My Hepatologist at UCSF says that in a long term monogomous
relationship there has never been any correlation found between sexual
relations and virus transmittance, and she is world renown and does
extensive research on this.

You won't infect your wife or your child if you decide to have a baby.
It's rarely passed on thru heterosexual contact of from a father to his
son/daughter.  Blood to blood is it.  
Elmo

http://community.webtv.net/elmoemerson/DocElmosHepFile

Here's one recent report:

Sexual Transmission of HCV Is Rare in Monogamous Heterosexual Couples  

May 13, 2004 — Sexual transmission of hepatitis C virus (HCV) is rare in
monogamous heterosexual couples, according to the results of a 10-year
prospective study published in the May issue of the American Journal of
Gastroenterology.

"The rate of HCV infection in sexual partners of anti-HCV-positive
individuals has been shown to range between very low and as high as
30%," write Carmen Vandelli, MD, from the Universita di Modena e Reggio
Emilia in Italy, and colleagues. "These discordant findings may partly
be explained by the confounding effect of nonsexual transmission
routes."

In a long-term study, 895 monogamous heterosexual partners of
individuals chronically infected with HCV were followed for a total of
8,060 person-years. Of these 895 partners, 776 spouses (86.7%) were
followed for 10 years, corresponding to 7,760 person-years. An
additional 300 person-years were contributed by spouses whose infected
partners cleared the virus during treatment, who ended the relationship,
or who were lost to follow-up. All of these couples denied practicing
anal intercourse, vaginal intercourse during menstruation, or condom
use. Average frequency of sexual intercourse was 1.8 times per week.

During follow-up, there were three HCV infections, corresponding to an
incidence rate of 0.37 per 1,000 person-years. HCV genotyping, sequence
analysis, and phylogenetic analysis suggested that the corresponding
partners carried different viral isolates, which would rule out spousal
transmission of HCV.

However, the authors note that in 33 (3.4%) of 967 couples initially
investigated, both partners were anti-HCV positive, suggesting the
possibility that HCV could have been transmitted earlier in their
relationship.

"Our data indicate that the risk of sexual transmission of HCV is
extremely low or even null," the authors write. "No general
recommendations for condom use seem required for individuals in
monogamous relationships with HCV-infected partners."

Based on other studies, however, the authors strongly advised these
couples to avoid sharing personal hygiene items such as toothbrushes,
razors and nail clippers.

http://www.medscape.com/viewarticle/477553

I've got three children, all conceived after my infection.  After 18
years of marriage, my wife is still negative for hcv and all three of my
children are negative as well.