I have a few questions relating to marriage and sexual relations with spouse

1) If a couple are planning for a baby and if a man has discharged semen before intercourse does he have to do Gusl before having intercourse?
If he has Intercourse without doing ghusl will this affect the child?

2) Women discharge number of fluids so will this apply to females as well I.e. to do Gusl every time?

3) If a couple want to have intercourse multiple times during the night do they have to do ghusl each time before doing the act again, if the women conceives during the night will this affect the child?

4) Lastly if the couple are trying for a baby and the man’s position during the act is standing is this position allowed?

by

1- No. For both parts.
2- No.
3- No. For both parts.
4- No problem.