Spotting after sex-have a question.

Hi Everyone.

I have a question. My husband and I had sex and he came in me yesterday. I’m 5 weeks pregnant. Throughout my 5 weeks, I’ve been feeling okay until today. I had a little cramp in the morning and I took a shower. I was making sure I had everything clean down there and when I wiped I have like a a red/white mucus come out out me. I kinda have a little spotting ever since. Not any heavy bleeding. I have been feeling okay. I heard that spotting is okay but anyway more than is is dangerous. Anyway my question is when should I get really worried even to go to the hospital?