Does the feeling of pre-menstrual and early pregnancy differ?

Since the beginning, when I am within a week or so of my monthly, my s always get heavy, appear larger, and turn "hard" and lumpy-like. Now, for the first time, they feel completely different. They are heavy, but not hard. It moreso feels like I have cysts in my . Mostly at the bottom of each of my s, it feels like I have a lot of liquid there. Does the "consistency" of the differ in early pregnancy from the usual feeling one gets in pre menstrual? Just curious! Thx.