I am not a fan of tofu. there are only a couple of ways I can tolerate to eat it! Does tofu have to be part of a healthy vegan diet? What can I use to add the needed protein to my diet. I recently found out that I am pregnant and want to make sure I can eat a good balanced vegan diet that will meet my baby's needs. I am only a vegetarian right now. but have been flirting with veganism for quite a while and really want to adopt a kind diet for both me and my kids. so is tofu a must?

Tofu is not a must.  You can also use tempeh (still soy, but fermented soy beans instead) or seitan (wheat gluten) as a meat substitute.  I rarely eat faux meats, but I understand your need for more with your pregnancy.  Lentils are high in protein too and quinoa is a complete protein.  Try to get a lot of leafy greens into your diet as well and raw veggies.  Congrats on the pregnancy and good luck!  There are lots of moms (not me) here that can help you with questions along the way.  Alicia also just had a baby and had a vegan pregnancy. 

Beans beans and more beans! I love 'em because there are so many different kinds and you can prepare them in so many different ways. Okay, I may be a little over-enthusiastic about them because I didn't grow up eating beans and they are still quite exciting to me. ;-)

Like catconsrv says, you don't NEED to have tofu. Tofu is just one of many high-protien foods you can have.

Tofu or Soy products aren't essential but they can make a vegan diet much easier from a nutritional point of view. Soy and Tofu are rich sources of protein(amino acids), minerals such as calcium and iron which can be problematic for some if poor variety and proper amount of plant foods aren't consumed. Also rich in omega-3 fatty acids which can be low in some vegans also if some nuts and seed's aren't consumed regularly.

Amla & Vegan Blog

Tofu isn't a must but I guarantee you, the more you experiment...the more you will find you like it. I used to hate tofu but tried a few ways and it was so very yummy. Worked out so well. 

There's a recipe for a great tofu eggless egg salad on this site: http://www.compassionatecook.com/

Tempeh's great too, it has a better texture.