Yes, increase in vaginal moisture is normal in pregnancy.
No
I have experienced tightness and cramping after sex. later in pregnancy, sex can bring on labor. early in pregnancy, your probably feeling your muscles contracting after orgasm because it affects your uterus as well. like braxton hicks contractions
What do you mean by "wormlike structures"? Am not sure what you are asking.
yes
Vaginal bleeding does not affect a pregnancy test.
vaginal discharge can vary in colour, thickness and amount during pregnancy. if you have any concerns see your doctor
This is not a symptoms of pregnancy.
NO. They are very safe to use during pregnancy.
Clear and liquidy
No it does not cause it.
It can be. I know it wasfor me. =]