So confused

Hi, I'm currently ttc., I had a 9day  bleed a few weeks ago it stopped the day before af was due but  I'm now 10 days over duel! 

I whent to gp who booked me in for swaps.

At the swaps the gyne said I had a cervical erosion!  

 Will having sex aggregate it and make the erosion bleed ?

Could I be already pregnant?  

So confused xx