Oxytocin
An activin is a peptide which participates in the regulation of the menstrual cycle.
Labor contractions might be the best term but not all contractions are painful.
The strongest indication that contractions are occurring in association with true labor is that the contractions begin to occur at regular intervals. This is contrary to Braxton-Hicks contractions, which are spontaneous, random uterine contractions that do not occur with actual labor.
Labor contractions are painful and you can't ignore them. If they are not painful then they are just Braxton Hicks.
Contractions
A tightening of the uterus during pregnancy. Contractions may or may not be painful and may or may not indicate labor.
Yes.
painful
There are no "fake contractions," except when women pretend to be in labor. There is false labor, which is contractions (usually mild and irregular) which do not change the cervix. (Labor is defined as progressive change--dilation and effacement--of the cervix.) Braxton Hicks contractions are real contractions, but very irregular. They can occur any time after 32 weeks of pregnancy, and are usually no more than 2 to 3 an hour.
False Labor
time the seconds in between her contractions
Contractions