The only way to prevent pregnancy without contraception is by abstaining from sexual intercourse. Unfortunately there is no way to prevent pregnancy from occurring with 100% accuracy unless you use contraception every time you have intercourse.
Preventing pregnancy during sexual intercourse simply means using some form of Birth Control.
Some methods of birth control include:
Unless they break during intercourse.
You can have intercourse through the entire pregnancy unless you have a risky pregnancy and the doctor say otherwise.
no, get a proper contraception
during ovluation.
During sexual intercourse usually.
Ask doctors, personal physician.
If your already pregnant and have sexual intercourse during anytime of your pregnancy you can not get pregnant.
Yes it does.
I do not know if it is "safer" but it is all good to have intercourse during pregnancy. In fact a womans libido usually increases during pregnancy (which I am sure your husband will find to be a nice change!) . Also, orgasms release a hormone that can actually help headaches and fatigue so go for it!
You can't control this during sexual intercourse.
Pre-ejaculate.
The least effective strategy is not wearing a condom during intercourse.