I may have posted a little bit about this before but I this friend. She is 16 weeks pregnant and when she told me I was SO HAPPY for her. She's been trying to get pregnant for awhile and had trouble keeping a pregnancy. She has been asking for my advice/what I've experienced. She doesn't usually listen to me which is moderately annoying but it's her body/her pregnancy. 
The flip side of this is she keeps saying she understands how I feel (being so big/uncomfortable/wanting to be done). Also, she keeps giving me advice. But I'm not asking for it..   It's always stuff about what to do about my contractions like since I'm 1 cm dilated and having contractions i need to go to the hospital because clearly I'm in labor -_-  She won't listen to me when I tell her exactly how and why that's incorrect. Or telling me what to pack in my hospital bag etc. I'm not super close with her but I have started to be a little forceful back and just say 'Well when you are this pregnant you'll understand'. I'm just really loosing patience with her and it's funny because she was just complaining to me last night about unsolicited advice she gets. I'm just unsure what to do with the exception of just not talking to her.                 
                             
        
Re: Annoying friend
I wouldn't want anyone giving me advice about whether or not I'm in labor either if they've never been there themselves. But then, I'm someone who really hates know-it-alls.
How are you guys communicating when she says all this? If it's text/FB/email I would just ignore her or completely change the subject anytime she gives me unsolicited advice. Hopefully that will get your point across and it would also prevent any arguments that may affect your friendship.
She probably is just trying to relate but I understand about wanting 'your own' complaints - you wouldn't mind so much if she was at the same stage as you but she clearly has a long way to go before she is in your shoes.
When she gives you incorrect advice you can say 'thanks for the ideas but that's actually not quite right, just so you know for when you get to this stage of pregnancy, it's actually xxxxx correct info xxxx'.
Good luck - she sounds like a pain in the butt