Vaginal spotting after sex

Okay so little history... I’m taking vaginally progesterone every night. I’m 5 weeks pregnant. My husband and I had sex for the first time in a week and during i did feel sensitive/ irritated. When I went to the restroom after I noticed light pink on toilet paper and then also on a panty liner. Anyone else have this and everything be okay? I’m not cramping and not in pain. My vagina feels like it’s kind of got a burning sensation (sounds weird)... I’m thinking this had to be due to me doing the vaginal progesterone and maybe my cervix being sensitive but still scares me as we MC in October. I have four living healthy children and never had to take progesterone with them and never had this issue.