You know that look in his eyes or that certain touch. He’s feeling amorous. But you’re just not in the mood for sex. Everyone feels like saying no to sex sometimes. But it’s important to do it in a way that respects your partner’s feelings and that maintains the overall health of your relationship.

Some Myths About Sex and Marriage

It might ease your mind to know that there are some common misperceptions about sex and marriage. The big one is that there’s some “magic number” — the amount of sex you’re supposed to be having. That’s not just true. The number of times you have sex in any week, month or year isn’t important. What is important? That both of you are satisfied with the amount of sex you are having. Frequency of sex varies a lot among happy couples.

We also tend to have a very limited definition of what sexuality can be in a relationship. If you aren’t doing “the deed,” it doesn’t mean that your marriage isn’t sexual. A sexual connection is about more than intercourse. It can also mean holding hands, feeling an emotional bond, making loving contact or sending sexy texts. At times in a marriage where intercourse naturally wanes — such as after the birth of a child — it’s good to have this expanded vocabulary of sexual acts to draw on to keep your bond strong.

Be Honest about the Underlying Cause

Sexuality is an important part of your marriage. If your desire is misaligned with your husband’s, start by looking for possible causes.

There could be a physical reason you’re just not in the mood for sex lately. Health issues, medications, hormonal changes, aging … they can all put a damper on your libido. Consider getting a checkup if you suspect a physical cause for your lack of sexual desire.

Your lack of desire might also have an emotional component. You might be bringing some other issues into the bedroom. If, say, you’re super-resentful that he doesn’t do more around the house, it’s hard to feel too frisky. It’s important to deal directly with the problem that’s dampening your desire.

Or you could just be plain exhausted by the frantic pace of our lives today, so you stop having sex as often. Unfortunately, the less frequently you have sex, the less likely you are to want it (use it or lose it). If your sex life has fizzled out because you’re busy and tired, try scheduling some time to get intimate when you’re not so worn out. This doesn’t sound very romantic, but it actually works.

If You Do Need to Say No to Sex

When you do turn your husband down, communicate what’s going on with you. For example, “I’m exhausted after these past two days at work” or “I just can’t stop thinking about my mom’s illness right now.” He needs to know that he’s not the reason you’re not in the mood for sex. It’s also helpful to suggest another time the two of you can possibly connect sexually.

Taking a pass on sex will feel a lot less charged if your husband isn’t the only one who ever initiates it. If he’s always the one who has to risk rejection, he could just stop asking. Make the first move sometimes.

Consider Saying ‘Yes’

Sometimes you really, really are not in the mood for sex. When it’s just not happening for you, don’t hesitate to say no. But sometimes your mood might be more “eh” than “no.” Or maybe you know that you tend to get more into things once sex gets started. If that’s the case, consider giving him the thumbs-up. But this should not become the pattern in your relationship.

For more advice like this, check out my book Strong Women, Strong Love. I wrote it to help busy couples enhance both physical and emotional intimacy.