Do you have other plants of the same strain or grown it before? If you know what to expect, a big red flag it's heavily pollinated is if it is developing significantly less trichomes than normal.
At ths stage of ripeness, it's perfectly normal for pistils to be dying (changing colors). The "bulgy" just look like normal ripening of calyxes. The only way you can tell teh difference from that is when the seed starts to portrude from the envelope near the end.
you can always rip off a few calyxes and split them open. i would not do that in this case as it looks fine.