Its not necessarily sex. Pregnancy in general can cause the yeasts and fungi that are naturally on your skin get out of control.....
Just make sure to use the bathroom after sex & wash up. The one time I forgot yo do that I got a yeast infection. No fun.
Yes it can. I got a terrible one in my second trimester and my hubby and I had just started to have sex again. My doctor said that it caused my yeast infection.
No I don't think so. But if your not careful about peeing before and after it can cause uti/ bladder infections!