What is this?

Christina • 🇫🇷❤️👧🏻🤰🏻 Ma vie est magnifique.
I had AF may 27-31.. I had sex may 31 when my period was basically over and then every other day after that until yesterday. For the past 3 days I've had pink spotting but it's ever so light and its really only when I wipe. I've had mild cramping today. Anyone else experienced this and if so what could it be? TTC for 3 months! Thanks!!