When I was staying with my parents, my skin got extremely dry and itchy, though not exactly psoriasis. Mummy used to apply fresh coconut oil which helped a lot. Do ask your doctor if it is getting severe.
Pregnancy hormones can do weird things to our body and skin. But please don't ignore any skin changes and consult your doctor quickly, especially to ensure it doesn't cause you any severe stress. Sending you a lot of strength.
Actually, pregnancy can sometimes trigger or even improve skin conditions like psoriasis due to massive immune system changes. My doctor told me that hormonal shifts play a big role here. You must consult a dermatologist who coordinates with your gynac.
I had severe skin itching during my pregnancy and even after my C-section delivery. It takes time for the body to heal and get back to normal. Gently moisturizing helps, but definitely check with your doctor for proper treatment.
I had some skin rashes during my second trimester, so I immediately called my consultant at Cloudnine. The hospital staff scheduled a quick dermatologist consult for me. It's always best to get it checked professionally rather than guessing.