Hang on; we're all right here with you. Pondering a baby is certain a big deal, but you are realizing that you can't start looking for answers until your girlfriend gets back. I'm glad you're aware of how that's affecting your OCD and anxiety. It's so hard to avoid planning ahead for all the options - I think it's part of the way we anxious folks make ourselves feel safe: we're prepared, or at least we don't feel so unprepared.
Try to tell yourself now that you have thought through all the options that you can until she gets back. You *have* done what you're able to for right now, and that's a good and strong thing. Remind yourself that you have sorted it out so far, and so once you two have even more information, you *will* be able to sort out what comes next. In other words, you've handled it pretty well so far, proving you've got the ability to keep handling it well. I know you probably don't feel like that, but I think it's true. You've planned ahead, and so try to let it go until the time comes to put your plans into action.
Big, big hugs,
Co-Moderator, Anxiety and Panic Forum