Jelly sperm or jelly CM or both?

The other day after sex i noticed this jelly clear blob on my mans pubes and on me. Im wondering if it could of been his sperm which turned into jelly...

Or if it was my cm. Or if it was both of our stuff combining into one.

I read somewhere that if the cervix is closed due to pregnancy it wont let sperm thru so that it combines with ur cm and it turns into jelly....

What is it than?

Anyone had something similar?