Oh the joys of pregnancy! yes, I had smell sensitivity with all 4 of my babies. Lasted throughout the pregnancy, though some days were better than others. Every woman is different so what works for me, may not work for you. But, you just try different things and hope it helps. Try to use unscented things. I know, this is very difficult because everything has a scent and for the pregnant woman who is sensitive to smells, she can smell things that most people cannot detect! For example, while I was pregnant with our last child, who will be 1 at the end of this month, our cat was sick in my early pregnancy. I told my husband, 1 week before he died (and I didn't know he was going to die until we put him to sleep) that I smelled something really bad in the house. I cleaned everything I could think of: under the stove, under the refrigerator, the garbage pails...everything. I couldn't get rid of this horrid smell! My husband asked me what it smelled like and the only thing I could think to say was that it smelled like death...and I have no idea what "death" smells like except that what I was smelling, smelled horrible. But the funny thing about it was that I was the only one who could smell it! My other 3 children could not smell anything, nor could my husband. A week later, our cat was put to sleep due to kidney failure and he ended up having a seizure on the day we took him to the vet for a check up.
Other smells that bothered me were my shampoo and conditioner and body wash. Oh my goodness, I dreaded taking a shower just because of the smells. I ended up using a lightly scented body wash, which still smelled horribly strong to me but for the shampoo and conditioner I found that mint scented soap seemed to keep my nausea at bay. At least in the shower. Brushing my teeth gagged me each and every time! The smell of coffee, chicken, and cleaning products like soap detergent and Bounce put me over the edge. Just try to switch to unscented things for the time being. Once I had the baby, the sensitivity was gone!