Spotting after sex 7 weeks pregnant

I had sex last week and the next day in my liner I saw a brownish spot and it never came back. I called the doctor and they asked about sex of course and they said it’s probably that. Well I just had sex again and when he pulled out I noticed there was pinkish/more brownish blood mixed with the semen. I went to bathroom and wiped and there was nothing. This is normal, right?