What an excellent thread! I am also almost crippled socially by shyness. It isn't helped by the fact that I was bullied at school as I was a late developer and then when puberty kicked in I became extremely self conscious since the people who picked on me for being under developed then turned on me for turning into a "woman" overnight basically!
Girls are mean mean mean and I have also had very bad luck meeting new people and "putting myself out there" mostly because I am a bit of a doormat to be honest and apparantly abusive people pick up on this. I met a guy I really liked only to find out he was 2 timing me (actually try 5 timing me!) with other women, one of whom I met at a party HE invited me along to (obviously not realising we would meet) and I knew nothing about her - until her and her friends locked me in a room and basically beat me up!!! Needless to say that didn't help the confidence issue.
I overcame my shyness a little bit in a bad way by drinking which got me in a lot of trouble. I pulled myself through this phase somehow but pretty much had a nervous breakdown. As a result, I am not quite as much of a doormat as I used to be as I have got rid of all the "friends" I made whilst going clubbing and drinking etc since we were all kinda co dependantly destroying each other. I had some hypnotherapy to overcome my panic attacks so I can hold down a job and just be more kinda on the level but ran out of money so couldn't afford as many sessions. Then my mum died very suddenly - she was not old - which has again knocked me down a bit. I sometimes feel like whenever I try and act confident and actually start believing in my self worth, something happens to "punish" me which I also realise is part of the shyness.
My mum had become a close friend to me so when she died I felt really lost - I still do. However, she was always reserved and a bit of a doormat letting people away with all kinds of behaviour just to "keep the peace" which is probably where I have learnt this behaviour from but she was never really "shy" as such.
I don't have any real close friends any more but I don't want to make any more "fake" and shallow friendships which drain your energy so sometimes it is better to hold out until you meet someone you can really relate to rather than making shallow small talk with every stranger you meet - I feel this can make me feel even more worthless as they never really give a sh!t about what you are saying and all they wanna do is talk about themselves. I hate small talk anyway which makes things even harder. It feels like such a waste of time. I know I appear aloof and maybe even people think I am stuck up but I am sooooo not. It is so hard.
Anyway, maybe you could look at some websites on "Social Anxiety Disorder" as I found this to be what I was suffering from rather than just being shy. I don't know if it will match what you are feeling but it's worth a look.
I haven't been to 1 antenatal class because I am so shy at the moment and so full of pregnancy hormones that I can't face the thought of meeting new people (DH is working long long hours just now so I would have to go on my own) and making "small talk" about being pregnant etc cos I HATE HATE HATE talking about myself and you can't really have a conversation without sharing info about yourself... I think I feel telling people about me gives them ammunition to use against me you know?
ANyway, I am going to post this message b4 I chicken out or even before I say too much for once!!!!
Good luck with trying to build your self esteem - it is true, your DH loves you and you have a beautiful child who I am sure you will encourage to be confident since you know what a debilitating thing shyness is. Also, the frustrating thing is that people who are shy and sensitive usually make really great, trustworthy, kind, considerate and caring friends/partners but it is extremely difficult for us all to find each other cos we are usually the most aloof and unapproachable ones at the school gates that you think "I am NOT talking to her! She looks like she would bite my head off!!!!" I know that people I am close to now tell me in all honesty that they either "saw me around but were too scared to talk to you" or "thought you were a stuck up b!tch"!!!! Now they know me, they know I am just shy.
One final thing - I bet when you are with your DH you can be yourself (most if not all of the time?) as I am the same and it is so frustrating to think "why can't I just be myself all the time?!?"
Some people who are the chattiest loudest least shy people are also the most annoying and obnoxious!!! I would rather be me than them... Just a little more confident.
Take care and best of luck!!!