Red dot

Is it normal when wiping to see a red dot ? I mean dot like a period(......) I only saw one dot. I’m 7 weeks pregnant. Also been having a lot of headaches and every month when wiping I see light pinkish. It doesn’t happen often but it’s been happening since August. For example whenever you get your period this light pinkish when wiping only lasts one or two day and it only happens when wiping.