It unfortunately is normal forty as you still have the hormones in your body. It will probably take a day or two after the erpc for them to go away, and it's very likely to make you very emotional. Be kind to yourself, and take the time you need to process it.
I remember just cry and crying and wanting my baby back. I really struggled for a while, and thought I was very weak and pathetic to let it bother me so much. That made me feel very lonely, but reading the experiences of others on here made me realise it's just something that's not really talked about, and that other women find it just as hard. It does get easier, but it takes time, and I found trying to pretend I was fine just made it worse. I really did need to go through the grief process, for the future I had imagined. My DH was a rock through the whole thing, and I am forever grateful to him, but I know it was hard for him too, and he reached out to others for support as I just wasn't capable of it.
We have gone on to conceive again, although it took me a long time to feel ready to try. There is no right or wrong way or dealing with it, you just have to do what you can in that moment. I promise that it does get easier to manage though, and you will be able to cope, even when it feels like you can't.