Has anyone experienced this before during tww?

Mary
Me and my so dtd last night for the first time since Monday. Between then and now I have been cramping, cervix high, and having creamy cm. after dtd I went to the bathroom and when I wiped I had(tmi) pink mixed in with everything. It was not dark red or brown just pink. After wiping a few times it was all gone and I haven't really had anything since. I am currently 8dpo and have been searching for implantation bleeding for days. I read that in early pregnancy the cervix has increased blood flow and is sensitive and may cause light bleeding. I have truthfully never bled before after we dtd, so this is unusual. Any ideas or advice? We usually dtd often but for busy this week but have never experienced this before except with af.