I've known for a while now that I'm gay. Truthfully I've probably always known deep down but when I was younger I always pushed the feelings of fancying women aside and focused on having boyfriends and until recently, I've only dated men and not women. But truthfully I never felt anything for these men. Some of them were actually really nice people (some were not), were funny and charming enough, I just couldn't bring myself to find them sexually attractive no matter how hard I tried.
It's only in the last year or so that I've come to terms with the fact that I am a lesbian and I've accepted that fact. However everybody thinks I'm straight and they've never had any reason to suspect otherwise. I'm not the stereotypical lesbian - I've always been quite girly and feminine, I wear dresses and skirts, wear make-up, etc and I'm not butch at all so it's not obvious that I am one.
Recently I've been seeing a woman and things are getting quite serious so I feel if I'm going to come out, it might as well be now. I'm not going to lie - I am bricking it. I know most people are accepting and won't have a problem with it, but some will have a problem. I'm just scared that there will be some people who won't accept it who I need to accept it (parents, close friends). Then I'm scared about what people will think, if I'll even be believed - like I said I'm quite feminine and so is the woman I've been seeing so we're not stereotypical. I'm also worried that coming out when I actually have a girlfriend might be too much. I'm scared that I'll disappoint my parents, especially my mum, as I'm an only child and she always talks about me finding the right man, marrying him and having children - she really wants grandchildren - and I'm just going to break her heart. 
I'm worried, probably for no reason because as I said, being gay is generally more accepted these days. I'm also 25 so feel kind of too old to be coming out.
I'm being silly, aren't I?