i have identical twins. it's not as hard as people will like you to believe (i have three kids total). good luck! twins do shit that regular siblings cannot do (since they are exactly the same age) . it is seriously the funniest shit ever. it's all worth it. good luck!
oh, and it is also pretty standard for mothers of twins (or more) to be put on bed rest. just take it easy.
Well, here is hoping all goes well for you and the babies