This could be a variety of sexually transmitted diseases.
Saliva!
Semen
loss of compression, loss of power, oil is "milky"
Lime water turns milky when CO2 (carbon dioxide) is passed thru it. So to test if a given liquid is lime water, then pass CO2 thru it, if it turns milky, d liquid is lime water...
trapped bubbles of gas and liquid
Water turns milky.
when it hatches, it's father gave it a milky liquid
Yes you would expect to see that.
Take a pregnancy test. It is possible that you could be pregnant. The white milky liquid could be colostrum, which is the first type of breast milk. However, it is unlikely that you would be getting that this soon.
Mayan
The testes produce sperm and the're stored in a milky like liquid
Semen is a whitish, cloudy liquid - it may be almost clear, or very milky and thick.