Before I was pregnant, I have contact dermatitis on my fingers. After conceived (for my both pregnancies), these small itchy bumps appeared in other places like tight, lower leg, arm, back, tummy etc. GP misdiagnosed it as ticks bite because it really looks like one. After some readings, I find this useful information. It gets better after taking antihistamines and steroid (cream and oral). Just be careful when describe it to doctor. Some antihistamine is not pregnancy safe and avoid steroid.
Can you imagine, I suspect pregnancy from this annoying sign😂
https://dermnetnz.org/topics/prurigo-of-pregnancy/#:~:text=Prurigo%20of%20pregnancy%20is%20a,and%20pruritic%20folliculitis%20of%20pregnancy.