Spotting 1st trimester

I'm 9 weeks and woke up this morning to some pink spotting when I went to the bathroom. It was there even after a couple wipes. I'm not experiencing any cramping right now. We did have sex last night, but I didn't have any spotting last night, just this morning. I heard you can spot after sex while pregnant and it's normal, but is it normal to spot the next morning and not right after? I'm soooo nervous and just want someone to ease my mind.