Menstrual patterns in participants using hormonal contraceptive and intrauterine devices
| Contraceptive used (n=20) | Description of menstrual cycle | Average length of bleed | Self-reported heavy menstrual bleeding |
| Intrauterine systems (hormonal) (n=8) | |||
| Regular | 4–5 days | No | |
| Irregular | 1–2 days | No | |
| Irregular | Varies | Varies | |
| Irregular | Amenorrhoeic | No | |
| Irregular | Amenorrhoeic | No | |
| Irregular | Amenorrhoeic | No | |
| Irregular | Amenorrhoeic | No | |
| Irregular | Amenorrhoeic | No | |
| Intrauterine devices (copper) (n=2) | |||
| Irregular | Amenorrhoeic | No | |
| Irregular | 3–4 days | No | |
| Progestogen implants (n=5) | |||
| Irregular | Amenorrhoeic | No | |
| Irregular | Amenorrhoeic | No | |
| Irregular | Amenorrhoeic | No | |
| Irregular | 4–5 days | No | |
| Irregular | 4–5 days | No | |
| Progestogen-only pill (n=3) | |||
| Regular | Amenorrhoeic | No | |
| Regular | Amenorrhoeic | No | |
| Irregular | Amenorrhoeic | No | |
| Progestogen injections (n=2) | |||
| Irregular | Amenorrhoeic | No |