Brown spotting/discharge

sabrina

I had intercourse early at 4am this morning and throughout the whole day I’ve been spotting brown with some stringy discharge. I’m 24 weeks and this hasn’t happened before. I’ve had some fighting in my belly but nothing painful. Some pelvic cramping but nothing severe. I felt pressure during my morning shower at 9 but it went away. Should I be worried? Call an on call nurse? I just thought it would stop but it’s still happening .