So my gf and i dryhumped using only our underwear. My penis didnt came in contact with her vagina directly. We did it twice, the first was on the 28th of november. I came on her hands, but on the morning i masturbated so the sperm level should be low i guess. After i came, we wiped it off clean with tissues. We then continued. My dry but a bit sticky hands touched the surface of her vagina but didnt penetrated. We stopped bcs we were very worried. She then peed and cleaned the surface of her vagina with soap. We were very worried. She even ate some slices of pineapples and drank a bit of alcohol. 3 days later we checked using a test pack and it turned out negative. Then we did it again on the 7th of december but this time i didnt came. I just had some pre ejaculation on my underwear. We did it still wearing our underwear. She said that she had her period on the 9th of december. We never did it again but on the 12th of december we checked using a test pack and it turned out negative again. This is the 18th of january and she hasnt got her period. We last checked on the 10th of january and it turned out negative again. Shes already 1 week late but its been a really tough week. We fought a lot and shes not having enough rest due to tests. Is it possible for her to be pregant?