Bleeding during sex and pregnant (details)

El

I’m a bit worried today my husband and I were having sex and at one point we noticed some pinkish mucus on his private part and we immediately stopped. When he washed it off he said that it was a bit chunky. After that I showered and I noticed some brown spotting on my underwear but it stopped. I don’t have any pain or discomfort and I feel fine. Is this normal? We were not having rough sex but I was riding him so maybe that was too strenuous?