If she is already pregnant, she's very unlikely to get more pregnant, so from that point is is safe.
But you can still pass on and get STDs, if either one of you is carrying one.
No.
Condoms are only 85% safe.
condoms are a lot safer
Yes it is possible condoms are not 100% safe. They sometimes break.
Yes, you can still get pregnant if you've experienced PMS. Unless a woman is menopausal or already pregnant, pregnancy can occur. The youngest known female to be pregnant was four years old at the time. The only ways to insure that you do not become pregnant are to practice safe sex or abstinence. You can use hormonal birth control, male or female condoms, the sponge, the ring, or a diaphragm to prevent pregnancy.
Anything your partner does after you have already become pregnant will not affect your baby, unless they pass along an STD/STI -- your body closes the area the baby is in, off from the rest of the world to keep your child safe from contaminants, diseases, bacteria and the like.
The short answer is "No." There is only "safer sex." For sexually transmitted diseases, using a condom will reduce your risk TREMENDOUSLY, but will not make it disappear. As for getting pregnant... condoms have a 12% failure rate. If that's all you use--- you're looking at a 1 in 10 chance of getting pregnant. Is that safer? Yes. Is that safe? No. For pregnancy... use multiple methods. It will decrease your chances of getting pregnant greatly. Diaphragm, pull-out, condom, spermicide, the pill, Fertility Awareness Method, etc... use as many as you can, and you will be "safer." There is no such thing as 'safe sex.' COndoms break way to much. Condoms can come off. Trust me trying to get a condom out of vaginal cavity is not easy or fun. No there is no 100% safe sex condoms do provide a lesser chance of contracting diseases and getting pregnant but diseases such as herpes can still be transmitted even with the use of a condom so please be extremely careful with the choices that you make concerning your partner and the methods of protection you use hope this helps, good luck, and GOD BLESS!!!
You can be safe by always using protection. This however doesn't guarantee that you won't contract an STI. The very best way to be safe is to know your partner. Get tested together and use condoms every time you have sex.
There is a high possibility, however you should always use condoms and practice safe sex. You could get STDs, crabs, AIDS, etc.
What is family ?
No. They definitely help prevent, and can prevent disease, but there is still a possibility you can still get the disease (or pregnant). They do lower the risk a lot though.
It is safe as long as it's used properly.