Is taking palafer and materna prenatal vitamins at the same time safe for fetus?

Yes: Both Palaver and Materna have iron, vitamin C and folic acid but it is completely safe to take both of them as Vit C and Folic Acid are safe to take in very high amounts and it is also safe (and often beneficial) to take the amount of iron contained in both of these. Congratulations! I recommend all mothers-to-be read Ina May's Guide to Childbirth by Ina May Gaskin.