2 periods days apart
- 2 periods 10 days apart
- 2 periods 4 days apart
- 2 periods 5 days apart
- 2 periods 8 days apart
- 2 periods 9 days apart
- 2 periods 12 days apart
- 2 periods 3 days apart
- 2 periods 17 days apart
- 2 periods 7 days apart
- 2 periods 19 days apart
- 2 periods 20 days apart
- 2 periods 16 days apart
- 2 periods a few days apart