crying baby

Pamela • First time mommy ❤️
So I EBF my baby, she is 4 months old. I work 4 days 1-930 pm and she seems to cry almost all day that I'm gone. Especially when it gets to around 6 until I pretty much get home. Does anyone know anything that can calm her down? Could it be that she misses me? Not sure what it could be..