gosh, i have to take xanax to attend baby showers. i can't imagine 2 in two days. it might happen that way here at my work soon though. so i'll need to find out how you did this.
first, show up late, and leave early. that's the best thing. and offer to help out. that way, you aren't involved in the games or stuff. when i was actually trying to have a child, and showers were painful for another reason, i found that helping out with serving or cleaning up kept me away from the activities, and it kept my mind off stuff. plus, it kept me away from the people who would ask questions like "why don't you have kids yet?" and stuff like that. so if you can find something to keep you busy, it will probably help.
although i have to admit, i've bailed on a few showers. once i was the hostess of my friend's shower, and i actually ran away from it. i was so utterly sad, and then when i saw her husband and the love they had for each other and how excited they were about the baby and i thought about how i wasn't able to give my husband (ex now) a child, i just lost it. ran from the place and couldn't go back. a friend even tried to track me down, but i was out of there. it wasn't the healthiest way to deal with it, but at the time, it was all i could do. it's been 8 years, and we're still friends, but she has no idea what went through my mind that day.
so if you have to go, do what i said. show up a little late, help out cleaning up or cutting cake or something. and then leave early. esp before they start opening gifts. because usually they'll find the person who does NOT have a kiddo in their lap (why do people bring children to these things?) to record the gifts and the givers, and you don't want that job if you ask me.
no matter the situation, baby showers are rough for those who aren't mothers. even if they choose not to be mothers, the showers are still rough. same with bridal showers for single girls and divorcees. too many land mines if you ask me.
hang in there and let us know how it goes if you decide to attend.