Go ahead and be ambivalent. Put it out of your mind. Go about your day.
And live. And I bet you will get pregnant.
We have never had to go the specialty route but we don't have the easiest time getting pregnant. At least when we were trying. ;)
Took a year for DD. Two and a half (w/ a loss in there too) for DS. And #3? We were not even trying. DS is not yet 2! We were definitely not trying!
I conceived my first 2 when I finally let go (of trying to be in control of a uncontrollable situation). Almost immediately after I let go, actually.
As far as the ages...I urge you to let go of that too. There are 4.5 years between my first two. Until the moment I knew I was pregnant w/ my DS, I agonized over it. (I wanted no more than 3 years between, originally.)
I based everything on my own experience as a child and studied other families and was sure I had found the perfect spacing.
I was so silly. I think after the birth of my first I developed PP-OCD. :(
There will be almost 7 years between my DD and her new little sister. A tiny piece of me wishes they could be closer, but I know that even if the distance were even greater it would be ok.
Anyhow...I hope you can find the strength to let it go, give it to God and be at peace.