Absolutely. In fact, sexual desire naturally fluctuates throughout life, and it’s completely normal for it to come and go and having periods of no interest can be completely normal. In fact, expecting your libido to stay the same forever often creates pressure and expectations around sex.
Instead of measuring your libido by how often you want sex, it can be more helpful to notice any patterns. Are there times when you feel more interested? What tends to increase your desire? What seems to support it being there? Understanding your own accelerators and brakes can help you work with your desire rather than against it.
If your loss of desire is sudden, persistent, or causing you distress, it’s worth speaking with a healthcare professional or psychosexual therapist. But in most cases, fluctuations in desire are simply part of being human.