I'd be careful about just trying something over the counter while pregnant without your doctors approval. I've also been plagued with itching since my 1st trimester. Not caused by an infection or std either. I addressed it with my doctor. She did a quick exam & prescribed me a cream to use as needed. It works so well that I only have to use it once a day maybe every three weeks.
I've had a yeast infection before and the itching was all over not just on the clitoris and it went away with anti fungal cream which I tried when it first started itching. And my doctor called me back after my urine was analyzed and said it wasn't a yeast infection.
I had that issue and it was from a yeast infection. Omg it was the worst irritation I've ever experienced.
The wipes are convient as you can wipe right on the spot so to speak
They also make anti.itch wipes as well. I believe vagisil makes those to! You can use those as sometimes the cream can be uncomfortable.
Try vagisil anti-itch. It's for outer itching.