I am so sorry for your losses of the last year. I'm sending you hugs because I've been there, in my own way. (Our own experiences are so individual.)
There is NO right way to grieve the loss of a child. My first miscarriage was similar to yours-- hardly knew I was pregnant. The second was horrifying for me. For about two weeks, I literally felt like a creature trapped in amber: my points of reference in life suddenly felt unrelatable to my (then) husband or anyone else. A dear, loving friend suggested counseling, which unfolded into a real examination of ALL the losses implicated within that failed pregnancy: my desire to make something more of my life; my desire to have a healthy loving family (not what I grew up with); my desire to see my then-husband step up and become a grown man; my longing to re-do childhood and be the stable, sane mother I never had. And so much more.
I went into counseling because of the grief of losing that baby-- it was overwhelming to me and my friends. What I came out learning was that there's always so much more emotionally invested into a pregnancy than the baby: there are years of subconcious hopes and dreams. If we do not heal from the feeling of loss around these areas too, we sometimes only partially move on from our miscarriages, and leave some part of ourselves there within that grief.
There's a good book about pregnancy loss called "Unspeakable Losses" by Kim Kluger-Bell. ( I would recommend reading the reviews to see if this is a good match for you, because she does tackle hard subjects such as selective termination and abortion). What I appreciated so much about this book was how there was no perfect, right way of getting through these times, and how much the feeling of loss pervades a parent's sense of self, no matter what the circumstances of the loss are.
All this to say, I think it's worth finding someone to talk to, to process the ectopic pregnancy and dig in to find out what about this pregnancy you *don't* feel like celebrating. And also, to find some coping tactics so that you don't get triggered when your husband or loved ones want to celebrate or congratulate you on this baby now. This may keep you from feeling overwhelmed, and help you to allow yourself to enjoy the pregnancy and to bond with your newest little one.
As for the people who say "again".... remember not to take on 'their stuff'. Many people really goof up on being tactful, so if these are good friends, just take it as a gaffe. If they aren't, just don't put your energy there. You need that for yourself and your family.
What you need for yourself, though, is more healing first. And I understand about mircacle babies-- my last miscarriage was such a huge blow (because I'd gotten so many of my old issues worked out and felt we were really *ready*), and then I became pregnant 5 weeks later with my son. I made a concious decision to enjoy our pregnancy, and really did for the most part. I wouldn't have been able to do that without having examined all the other stuff years ago. That's why I recommend really getting some help around grieving-- because years later, I was able to bounce back more quickly and have some lovely positive experiences.
I hope you come to a place of peace within yourself, and your relationship with God, during this time.
H.