BW, I just got mine out of the wardrobe and mucked around with it because I couldn't remember whether it clicked as you depressed the button or not. It does make a rapid clicking sound as you do that.
Chances are that if you felt the dosage go in both times (it was a coolish sensation as I recall) then you are doing it right. I think the pen is pretty foolproof in that regard.
Give them a ring though if you are worried. Good luck.
Hi BW...I am on my 1st cycle of IVF as well and was shown just last week..yes, the clicking is the noise it supposes to make when you injecting...so it sounds you did it right...each cartridge should be enough for 4 times if you are on 150...hope it helps.
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