Pitaya smoothies have helped me. I am 4 months pregnant and pitaya also known as Dragon fruit is my saving grace.
I buy the frozen organic 4 packs from the health food stores.
Wholefoods, Mother's market, Lassens, Erewhon market all carry it.
I put two in my nutribullet with some raspberries, and coconut water and I'm done.
Something in the seeds keep you smooth.
In addition to that, pitaya has iron and anti-oxidants and loads of other nutrients that are really good for you and the baby while you're pregnant.
Experiment with recipes, just don't use pomegranate juice with it.