Buds not fattening up

Hey guys. I’m in week 4 of flower from when I saw pistils and my buds don’t seem to be fattening up. Am I just being impatient and they will fatten up in the next few weeks? Do my girls look on par for the week they are in?

you are being impatient. at week four you are less than halfway through flower and most of the real bulking doesn't happen until the last couple weeks.

Yes they look on par. Come back on day 70

also, the plants are looking great!