OneSource Prenatal vitamins are NOT the only vitamins that I have used since pregnancy. I'm now at 30 weeks. I was also actually prescribed Prenate Elite from my physician.. and did not notice a difference between the two.. other than the fact that my pocket was about $50 lighter after purchasing the prescription vitamins. I purchased OneSource from Walmart.. and If I remember correctly.. I paid a mere $7 for 144 tablets. The fact that you have to take 2 a day... that's nothing. I mean come on, they're small pink pills.. easy to swallow. No big deal. And for getting sick.. every person is just different....