Possibility of contracting Hiv?

[zero101]

Ok im an 18 year old male me and my girlfriend recently started haveing sexual intercourse.. The first time we did i could barley get the tip of my penis inside of her beacuse she was to tight to me it kind of made me think she was a virgin beacuse we couldant realy do it without her crying in pain beacuse it hurt her so bad.. She has told me she has had three diffrent sexual partners one of wich was bisexual and she explained that the bisexual male had came inside of her wich when i found that out i freaked out... we had sexual intercourse 3 times protected and 2 times unprotected.... She says she know the std statuses of thos partners and they dont have anything but i cannot fully trust her. So my questions are

1.Does her having a relationship of haveing sex with a bi male increase her/my chances of contracting hiv

2. what are the chances that i have acuired hiv from thos 2 unprotected encounters

3. Can i put my mind at ease  am i just worrying?

4. Should i get tested?

[zero101]

Thank you so much your answers have been so helpfill but i have to ask 1 more small question my GF called freaking out about haveing an std she said she had some yellow discharge the othernight now im freaking out that i have gonnorhea i mean i have had no symptoms other the aa sore testical that lasted mabey hald a day beacuse of so much masturbation no pus or discharge no burning durning urination and its been mabey 2 weeks almost since we had sex should i get tested or what do you think thank you doc.

[Edward W Hook, MD]

I cannot comment on whether she was a virgin or not.  You need to discuss this with her.  there is great person to person variation in size of both the vagina for women and the penis  for men- body size does not predict genital size.  No matter what however, as I implied before, you should move on. This is not something to be worried about.  EWH

[zero101]

And one more thing the thought crosses my mind of her being a virgin i mean the first time we had sexy i could evan get the head of my penis inside her with out her freaking out in pain and then when i got inside her she started to cry beacuse it hurt so bad and she is tightter then i have normaly ever had and she is a taller wider girl like 5'10 could she just be scared to tell me she is a virgin i mean i really wanna put this all behind me its killing me im to the point were i cant study for class and i dont have time nor money to get tested right now

[Edward W Hook, MD]

Welcome to the Forum. If your girlfriend has not been tested for STDs (including HIV) in the past, then there is a chance that she acquired an infection from a previous partner and could transmit it to you. The chance of this occurring however is small, both because it is unlikely she has an STD of any sort and even if she did, most STDs are not transmitted with one or even two unprotected exposures.  Just to be safe it would be good for her to be tested for STDs, just to be sure. this is not to accuse her or suggest that anything is wrong but to make sure that neither she nor you are at risk from an asymptomatic infection which could be present.

In answer to your specific questions:
1.  Slightly. the likelihood of an bisexual man having HIV is statistically higher than the risk of having sex with a heterosexual partner.  The risk is still likely to be low however.  Most bi-sexual men do not have HIV.

2.  If she were infected, which is unlikely, the risk of infection is about 1 infection in 1,000 sex acts. Thus after two exposures, IF she were infected which is unlikely, your risk for infection would be 1 in 500.  

3. See above.

4.  It is more important that she be tested than you.  I would suggest you both go and get tested. This is a good way to start a relationship.

I hope my comments are helpful. EWH