its my first cycle
test e 510 a week

so the first 6 weeks of my cycle i was putting on ~3 pounds a week (i weigh myself at the end of each week)
after week 7 (yesterday) instead of being up the usual 3ish pounds i was down about half a pound..

my diet has been on point so needless to say i was a little frustrated.
any thoughts as to what may have caused it?
my 2 thoughts are that i wasnt eating enough or like the title says i hit a wall

by hit a wall i mean that throughout all my pre cycle research i saw that its common to put on ~20 pounds on your first cycle and im up 18.

any input is appreciated

i can post a picture later if anyone is interested on the progress ive made so far