Target's Womens Prenatal Vitamins are excellent.  They are very inexpensive for a huge bottle.  I wish I had found them sooner.  I had been trying different samples from my ob and then getting prescriptions for prenatals filled every month which was taking my time up and it was expensive.  Someone told me about Target's brand and I tried them because the ones they were prescribing me changed somehow.  Many of the other kinds messed up my system, but the Target brand prenatlas were easy on my stomach and my entire digestive system.  They are easy to swallow, small and don't have a bad taste...