The progestogens have the same effect on the cat's body as the natural pregnancy hormone, progesterone.

Due to pregnancy hormones, the ligaments that support your joints become more relaxed.

Thus, for a long time, relaxin was looked at as a pregnancy hormone.

They're common in pregnancy because pregnancy hormones make the veins relax.

Have you considered the possibility that it's the pregnancy hormones messing with your head?

A blood test to measure your pregnancy hormones.

They have been linked to increasing pregnancy hormones and stretching of the tissue under the skin.

And, no, it wasn't the pregnancy hormones; I've got the same butterflies.

Home pregnancy tests are similar - they test for pregnancy hormones in your urine.

It's not surprising, as this is one of the effects of pregnancy hormones.