Lets us know what you decide to do and tell us how it goes over! That is very exciting!
aww congrats to you both I am so jealous =] I want me and my twin sister to have babies within days or weeks of each other. anyways BTS has really great ideas, since your having a birthdy party you can gather everyone together to take a group photo. Take the first picture, asking them to "Say Cheese!" Then, for the second photo, say, "Everyone say something like, you sisters name and I are pregnant!" Take a quick picture you'll get a great, stunned look on everyone's faces =]
or you both can wear a tee shirt that says baby on board or something to that effect.
you can get a calendar and put both of you due dates on it i don't know i'm not that creative
BTS has really good ideas like I said before =] i'm just not one with a creative mind i'm just blah but i'm sure anyone here can give you really great ideas =]
You could always write in marker on your bellies We're Pregnant, or Happy Birthday Grandma...have 1 word on your belly and one on your sis's belly, and lift your shirt to reveal the news? OR You could each get a teddy bear and tie the BFP tests on it with a bow?
I know a bunch of creative ways of telling the news. I did a few for my dad and my hubby, I had a tattoo artist airbrush ultrasound pic on my belly for the hubby on fathers day, when I got my BFP with my youngest son.
When I got my BFP with this baby, hubby was in the bathroom brushing his teeth, and I just told him to *keep brushing daddy* lol. He didn't quite get it until he seen the test.
You could do pick a hand game for her birthday. You can buy little itty bitty plastic babies at walmart in the baby shower/birthday section, and have her pick a hand on you and pick a hand on your sis, and either hand she picks there is a baby in?
I have tons of ideas, so if you want some more feel free to email me. I just helped my girlfriend tell her DF. Her DF is an avid video game player like my DH, so we put her BFP and ultrasound pic in a new video game, and thats the first thing he seen when he opened the video game case. He was super excited once he *figured* it out lol.