All I can think is that you are finally getting the EFA's your body is needing. The only other thing is that you are allergic to the oil.
OP is like eating oil. So unless you react to oil in cooking, it's not the OP. It's just food.
I will not deny that something is happening to you, because we each know our body better than others. But this will help your baby, not hurt it. In fact, this is excellent for you.