Is it normal to be injecting into your stomach during pregnancy? My educator stressed to only inject into my thighs. Not sure if that could cause any difference, but worth asking maybe?

I'm another that feels the sting if there's a drop of insulin on the needle upon pulling it out. Just leave it in the skin a few seconds longer before taking it out.
I've never had any pain associated with the injecting, just a few bruises from my first week of injecting when I wasn't used to it.