Hi hun, I'm just on my second round as I type! Ec tomorrow. Both times I have told my work. My hr treat ivf the same as pregnancy thankfully, so I can take my appointments without any issue (added bonus my clinic is 10 mins from my work so I can get to and from work without any issues) if you get on well with your management and feel that you can trust them, I say tell them. Takes the pressure off you having to make up excuses as to where you are and what's going on. Pretty much most of my office know to be honest. I've been really open since I had my first round last year, I know telling people can sometimes be a daunting task and it's not for everyone but I've always been of the opinion that if it's out in the open, no one can put their foot in it with daft comments and if I'm having a hormonal down day or an off day, they all know why.