All the following are features of an ideal contraceptive except:
| 1. | No or least side effects |
| 2. | Very low failure rates |
| 3. | No interference in the sexual drive |
| 4. | Must be permanent |
Natural methods for contraception work on the principle of:
| 1. | Preventing fertilization |
| 2. | Preventing implantation |
| 3. | Preventing ovulation |
| 4. | Preventing embryo development |
The days of the menstrual cycle during which coitus is avoided in periodic abstinence are:
| 1. | First 10 days | 2. | Days 10 to 17 |
| 3. | Day 13 and 14 | 4. | Last 7 days |
The lactational amenorrhea method of contraception is based on the fact that:
| 1. | Ovulation and menstrual flow does not occur post-conception during intense lactation |
| 2. | The cervix mucus becomes hostile to sperms after parturition during intense lactation |
| 3. | Ovulation and menstrual flow does not occur postpartum during intense lactation |
| 4. | The endometrium is reabsorbed rather than sloughed off during intense lactation |
Lactational amenorrhea is effective up to a maximum period of:
| 1. | 3 months | 2. | 6 months |
| 3. | 9 months | 4. | 12 months |