So IV been noticing alot lately that if my boyfriend isn't. Around me or dosent stay the night with…

So IV been noticing alot lately that if my boyfriend isn't. Around me or dosent stay the night with me I get kinda depressed and don't really wanna eat but as soon as he's around I'm in the best moods is that normal I don't know if it makes a difference being that I'm almost 9 months pregnant with my 2nd child