1. Hartman sign
- First three month
- implantation bleeding
2. Palmer sign
- 4-8 Weeks
- Regular rhythmic contraction during bimanual examination
3. Goodell's Sign
- 6 Weeks
- Softening of lower part of cervix.
4. Hegar's Sign
- 6-10 weeks
- And bimanual examination abdominal and vaginal singers opposes each other.
5. Piskacek Sign
- 6-8 weeks
- asymmetric enlargement of uterus.
6. Osiander's Sign [Octa-8]
- 8 weeks
- Increased pulsation felt through lateral fornix of vagina.
7. Chadwick Sign/ Jacquemier Sign
- 8 weeks
- Bluish coloration of vestibule.
8. Braxton Hicks Contraction
- >20 weeks of pregnancy.
- Painless irregular spasmodic contraction without any effect on dilation of cervix can also be felt in pedunculated fibroid submucous type and hematometra.
