Your symptoms are suggestive of a weak cervix
. Moreover, in a person with previous vaginal deliveries, descent of the baby within the uterus
is earlier as the tone of the muscle is weak. I advice you to seek help from a gynaecologist immediately who should be deciding if you need any care for your cervix like an encirclage to prevent a preterm labor
. You should also take lot of bed rest
, avoid coitus and lifting weights. Take care.