Yes unless he has a STD.
its protection that sort of stretches in the vagina so the penis can fit but just like a man's condum prevence STD's and sperm to exit into a women's body.
No, you cannot get any STDs from sucking on a person's nipple. However, you can get STD's through breast milk.
probably an std
No because you asked " is there a greater risk for women to develop diseases that are NOT STD's" You are not going to get NON STD's from having sex any more than a man would provided your immune systems are both healthy and you have the same exposure rates.
Go to the doctor. You could have a STD.
Gangrene.
No unless you have an std.
If he didn't have a STD and you misteriously get one from him.
If you are 100% sure he has never had any sexual contact with anyone, that would include oral (sucking), then no neither of you can give the other an STD.
Yes it is possible of catching S.T.D. But don't forget, many STDs are less obvious. Always insist on a condom.
get yourself checked, it's most likely an std