I Hun, I just wanted to quickly add my perspective:
I was CONVINCED I was having my much wanted, longed for, swayed for daughter when I was preggo with #2; all the OWT said so. Well went for a private scan at 17 weeks (without telling anyon else) and there we saw, sure enough, the little turtle that said that my 'girl' was actually my boy. ;) I felt like such a fool for thinking I could change anything and I had all the thoughts of 'how can I go through pregnancy/ labour/ nursing/ sleepless nights (etc. etc. etc) all for ANOTHER BOY?!' and I totally pulled back from my (really pretty good pregnancy).
Let's ff to the birth as I don't want to give anymore time unnecessarily to that GD b*tch.... His birth was very good - very healing for me actually as my first experience had been quite traumatic. My body showed me that, whatever my brain was busying worrying about, this body could do it... The love I felt for him didn't hit me like a truck (as was my experience with ds1) but was like when you find something you love and had lost but didn't realise you had lost it.... because it was there all along :)
I can see why he exists. He is SO bright, curious, determined - even if 99% of the sperm around his egg were girls he elbowed them all out of the way he was so certain he had to exist ;) he is right for us and our family. He is completely different from ds1 and yet so similar.... It is fascinating to witness :)
This comes to the 2nd part of what I was going to say: I am an only child. I 'expected' I would repeat my experience and probably just end up with one girl myself (WRONG ;) ) and I'm pleased for that as I would not recommend an only child experience in the main.... As a kid I'd ask if I was getting s brother or sister (as most do and most get) until it became obvs that it wasn't going to happen. I was t sad though as I had loads of friends. As a teen, I'm not going to lie, I LOVED it! I was spoiled rotten! Haha! However there was a little part of me that felt 'lonely' I guess. As I have gotten older, this part has grown. Unless you are an only child yourself, you cannot understand the feeling that you are missing a part of your history and shared experiences by not having a sibling (girl or boy). I definitely miss it now than at any other point in my life so far, hence why I was determined, GD or not, to give my son a sibling... And truly, they are so super cute together and to see the was ds2 idolises his big bro... My heart swells with love and pride just at the thought :)
Of course it is your decision. I can assure you though, as you have already found, GD is a pregnancy ruining ar$e h0le BUT the love you will feel for your CHILD is absolute (boy OR girl). If you are unfortunate to go through GD again the pregnancy is the worse bit. Mine is BAD and as another poster said, if I can get through it, you can too! :) (and you could have a dd next so not even have to go through this!)
No child is defined by their gender. Yes there are masculine and feminine traits, but let's be frank, even as male and female heterosexual humans, we are all actually a mishmash of these traits (I for one know I have some parts of my thinking and behaviour that I would say could be described as more masculine and I am 100% a girl ;) )
Good luck with whatever you decide. There is no 'right and wrong'. We can only do our best with the info we have at hand. Xxx