The answer to your question is as follows:
It is very likely that you are NOT pregnant. According to your story, various arguments support such a conclusion, as follows:
1. The amount of your boyfriend's sperm is quite small, according to what you say. This reduces the chances of a pregnancy
because of the higher the sperm volume and the number of spermatozoa
the higher the chances of pregnancy and vice versa.
2. The consistency of your boyfriend's sperm is watery, suggesting for low concentration of spermatozoa in it, thus further diminishing the chances of a pregnancy.
3. You said you never missed a period or your period are highly timely. But the current delay could be due to stress
or other factors, and the delay could be caused by a myriad of factors besides pregnancy.
4. Quick pregnancy tests
are very accurate, and they spot a pregnancy in more than 99% of cases. Therefore, if the pregnancy test is negative it means that you have very very low chances of being pregnant.
However, there is nothing absolutely certain in this world. Having this in mind, your pregnancy can not definitively be ruled out, but there is an extremely low chance for you to be pregnant at this time, even though you had unprotected sex right in the middle of your cycle.
To be sure, repeat the quick pregnancy test and if it comes out negative again, then the pregnancy should be almost surely ruled out.
Hope I have answered your query. Let me know if I can assist you further.
Dr. Ervin Toçi, General & Family Physician