Pregnant again after miscarriages

I had 2 missed miscarriages, one at 3 months and 1 at 10 weeks( this baby never implanted tho) so I'm 4 weeks pregnant. When I got my positive test I wasn't crazy excited (even tho we've been trying for months) I wasn't scared, I was just like ok. I don't kno if I'm trying to not get attached or what. I feel like everything is going to go well with this pregnancy, but I guess I just don't want another loss.Maybe I will get more excited after my ultrasound. I haven't called my dr yet but I assume I'll get an ultrasound at 6 weeks since I've had 2 miscarriages.