below I copy this from another thread, this is the value of the activity needed to rise to the next rank.
For 2 weeks you only got 14 activity , although your post is more than 14 but that counts only 14 every 2 weeks.
1 X 14 = 14
2 X 14 = 28
3 X 14 = 42 Jnr Member ( 1,5 month )
4 X 14 = 56
5 X 14 = 70 Member (2,5 month )
6 X 14 = 84
7 X 14 = 98
8 X 14 = 112
9 X 14 = 126 Full Member (4,5 month )
10 X 14 = 140
11 X 14 = 154
12 X 14 = 168
13 X 14 = 182
14 X 14 = 196
15 X 14 = 210
16 X 14 = 224
17 X 14 = 238
18 X 14 = 252 Senior Member (8,5 month )
19 X 14 = 266
20 X 14 = 280
21 X 14 = 294
22 X 14 = 308
23 X 14 = 322
24 X 14 = 336
25 X 14 = 350
26 X 14 = 364
27 X 14 = 378
28 X 14 = 392
29 X 14 = 406
30 X 14 = 420
31 X 14 = 434
32 X 14 = 448
33 X 14 = 462
34 X 14 = 476
35 X 14 = 490 Hero Member ( more than 1 year)
Good luck