Pregnant or not

Question 1

Pregnant
-what happens to progesterone levels

Answer 1

-they are maintained to support the endomtrium for possible embryo

Question 2

Not pregnant
-what happens to corpus luteum
-what happens to progesterone/estrgoen levels
-what happens to contractions (what does this mean)

Answer 2

-degenerates
-decrease
-increwse, and endometrium pulls away, back to the flow phase