Is it possible to transfer some sperm on the hand capable of fertilization?

Good morning. I have a question that has been very stressful for some time. Namely, the question is whether if my partner had ejaculation and a few minutes later touched my intimate places without putting fingers there is whether it is possible to transfer some sperm on his hand capable of fertilization? Personally, I think there is a small chance of this because his hand was also partially wiped because he put on his clothes, and touched me after about 5 minutes from this event if not more. Is pregnancy without vaginal penetration and ejaculation possible in it at all? If I did two pregnancy tests, one yesterday afternoon with a sensitivity of 10mlU and the other this morning with morning urine with a sensitivity of 25mlU and both came out negative then can I be calm? On one test it was that it detects 3 days ciaze and on the other that already 6. So it is not possible for the test not to detect this hormone after almost three weeks exactly 19 days? Please reply.