Feel depressed 😔

My baby is turning one on the 31st of May and I’m so happy and excited! But for the past couple weeks I can’t help but feel down. My husband is always gone at work and I miss him, I just feel so sad and lonely. But I feel guilty for even feeling like this because I have a great life. Please tell me I’m not the only one. And any advise on dealing with these emotions? 😢