Abnormal Bleeding Few Days After Sex?

Lauren • Had my sweet girl 02/22/20 - 5 weeks early due to rare genetic disorder💗 Had my handsome man 09/30/22 - 3 weeks early due to low birth weight💙

My boyfriend and I have been trying for a baby for a few months.

Two days ago we had sex, and everything was fine the next day. But today I’m feeling a lot of cramping and I had some spotting but very lightly.

I never have spotting and I’m not due for my period until two weeks from now.

Any advice or explanation?

Thank you