Totaly normal
been leaking
since the end of first tri with this pregnancy
think it was the middle of second tri it started last time, massaging gently can help a bit especially in a nice warm bath
but be prepared for more leakage haha, also if it gets bad enough that it's going through to your top etc you could start stocking up on breastpads a little early? Because you are sure as hell going to need them after baby is born!
after having my first I went for a shower and bent down to reach something and came back up with my T shirt soaked right through
after that I would always has to double up on two breast pads or even three some days per boob
my bra ended up being filled with more pads then boobies in the end!