laser hair removal

Anon
So I've done 5 treatments since march. I bought a six treatment package for both my Brazilian and my under arms. At first it was great, after the first 3 I think I only had about 15-20% of my hair growing back after about 4 weeks and it was soft and fine. I am about to do my last treatment today, and all of a sudden my hair is growing back dark and thick, and way more than before. Can you tell me your experience with laser.