Is it normal

Is it normal to feel guilty about my IF friends I'm "leaving behind" if this is a real and true pregnancy?
I feel so bad for them, remembering how I would be happy for them, but at the same time so destroyed for myself. There were only ever a handful I could feel completely and unreservedly happy for, with no "why not ME?" questions.

Is it normal to have had the initial rush of happiness and now feel surrounded by huge maybe's? Every time I find myself getting excited, or making mental plans, the "caution" sign flashes in my mind, reminding me nothing is concrete.

I feel like I'm in limbo, which is still infinitely better than BFN-despair. I don't feel confident enough to start getting attached to this pregnancy and (dare I say it) baby. If I'm not gagging and feeling ill constantly, I'm wondering if thats a bad sign, and maybe things aren't going well. I've never loved feeling ill so much.

And at the same time I'm trying not to over-think this.

I'm still trying to hold off telling anyone at work, but they're getting cluey. I think I might need to say something next week. Should I let them keep guessing and only tell them after the scan? I hate feeling like I'm deliberately keeping things from them, when they would be just so happy, but at the same time, I'm nervous about having to deal with their reactions if things don't go well.

So much for not overthinking things.