Mysterious bug bite help

31 year old F no health issues, 7 days ago noticed a red raised patch on my left hip. Two days later it developed a hooked streak extending from it. It has since been spreading very slowly and minimally outside the marked are. It looks like two definitive bites next to each other. It was itchy at first but not so much anymore, no fever. My hip is sore but I did attribute that more to working out as the rash itself is not tender. Spider bite? No one else in my family has bites.