I was in a serious monogamous relationship and we decided to become sexual active. I used the birth control pill but we didn't use any type of condom to prevent STDs. I know that I didn't have any STD's before being with this person but i wasn't sure about the other person. I made a stupid mistake which can really hurt my health. I was wondering how long it would take for my blood to show if I had HIV? The last time we were sexually active was about two months ago...if I got tested now would it show up or would I have to wait a few more months?