Becoming Parents Has Ruined Our Sex Life

Question: My wife and I have been happily married for four years, and love each other a lot. We recently had a baby and that has affected our sex life, which is turning out to be a big problem. She no longer enjoys having sex with me and finds excuses whenever I try to initiate things. I understand she has household responsibilities, but that does not mean you simply put a full stop on your sex life, right? How should I work on this situation and get our sex life back on track?— By Anonymous