Why does everything make me cry!? 😂😭

I am 6w4d today and every slightly sad thing or happy thing makes me cry. I had this mildly with my last pregnancy (mine and my hubby’s first together) but didn’t really at all with my first two (from previous marriage). Do you think this could be the combo of mine and my hubby’s genetics growing inside of me, and do things like this get more pronounced with consecutive pregnancies? I have three daughters and really would love to give my hubby a son (also love to see what my own boy would look like! There are only two boys on my side of the family and they look exactly like my brother-in-law and my sister (their parents) and no real specific resemblance to any specific side of our family), so I’m grasping at things wondering if this might be a sign of baby boy hormones growing inside of me lol