Weeks 1 & 2: Consider this when these 2 paths are going to cross and when our love meets =)
Week 3: Smaller than the period at the end of this sentence.
Week 4: No bigger than a poppy Seed
Week 5: Looks like a teeny tadpole (with tiny tail) and the size of an orange seed. The circulatory (or blood) system, along with the heart, is the first part of that tiny body to be functional; and as baby's heart starts to form along with the neural tube, which will eventually become baby's brain and spinal cord.
