Ah sorry you're feeling so rough. I know it might seem hard now, but it's so worth it once you see them wriggling about on the screen
Antenatal depression is quite common, if you do find you are struggling contact your midwife, they are there to support you throughout the pregnancy. There are also groups that are available for expectant mums which can only useful during pregnancy, you can generally find them.on fb.
My DS was a planned and very much wanted baby, but I don't think I felt excited for pretty much the entire pregnancy - not when I found out I was pg, not at the first scan, not feeling the first kicks. Maybe a bit when I found out the sex, not because I especially wanted a boy, but perhaps because it made things seem more real. I suffered severe anxiety during the first two trimesters, requiring counselling and later medication too.
I think women are generally 'expected' to be excited at being pg, despite being exhausted, emotional and/or sick. It's great for those who are excited, but don't put pressure on yourself to feel that way if you don't. If you're feeling crap, be kind to yourself and don't feel guilty that you're not full of positive thoughts.
I can relate. My DD was a planned and much wanted baby but after weeks of HG, I couldn't have been less interested in the 12 week scan. My DH found it very upsetting. To me, it was just another place I had to go whilst feeling like death. The relentlessness of nausea and sickness is all consuming and I feel for you. At the time I worried that I wouldn't love my baby because of my indifference. Fast forward a few months though and once the awful bastard sickness went, I felt brilliant and everything went back to normal. I couldn't compute those early feelings and I adore my DD.
A number of people do seem to be more excited then I am so far (16 weeks) which is not to say I haven't had my moments, but as long as you realise it doesn't make you weird or a bad person. Everyone reacts to things in different ways.
I hope you're feeling happier after seeing your baby Chloe. I'm at about the same stage as you and have my 12 wk scan on Tuesday. I get low and depressive from time to time, with the smallest things tipping me over the edge, though I'm not nauseas any more, just v tired with two other little monkeys to look after. I don't seem to be in control of the grumpiness and am so ready to be through this phase now! These hormones have a lot to answer for!