Conquering fear....

How do you get over the fear of the unknown, something you have never went thru before? Im am afraid of trying for a family, the whole concept of a living being inside of you and delivering. Trying to work fulltime and raise them properly. I know i think WAY to much on things. Thinking in march to stop the bc. I am 26 married for 3 years. I have problems with keeping up the house as it is with only my husband and our dog. Feeling stressed. Husband wants a family but is waiting until im ready.....