I am relatively new at my job. Been there for about 5 months. Today I took my 4th sick day. I feel like this is a lot and I am worried about what my coworkers will think. For what it worth, I am really sick with a 102 fever.
Me:35, DH: 39
TTC since March 2011. All bloodword, SA & HSG are normal.
8/12: Clomid & TI - BFN
10/12: Colmid & TI - BFN
3/13: Clomid, Trigger & IUI - BFN
4/13: Gonal F, Trigger & IUI: BFN
6/13: IVF #1 (1AA blast & 1BB blast) = BFN
8/13: FET #1= BFN
10/13: FET #2= BFP!!!

Re: Taking sick days
Yep, I'd rather a co-worker who is really sick just stay home rather than risking infecting the rest of us. I would personally only be annoyed if that person wasn't adequately catching up once they're back in the office, or otherwise slacking at work.
Like PP said, don't worry about it unless your boss says something to you