     14 weeks  14 weeks  12,5 weeks  10 weeks  10 weeks  10 weeks  8 weeks  8 weeks  7 weeks  7 weeks 
6 weeks  5 weeks  5 weeks   4 weeks  3 weeks  3 weeks  2 weeks  1 week |
14 weeks 14 weeks 12,5 weeks 10 weeks 10 weeks 10 weeks 8 weeks 8 weeks 7 weeks 7 weeks
6 weeks 5 weeks 5 weeks 4 weeks 3 weeks 3 weeks 2 weeks 1 week |