Ay, normal lang yan mama, lalo na kung konti lang at walang malakas na amoy, sometimes spotting happens after intercourse kasi the area is still healing pa, especially kung 7 weeks pa lang postpartum. But since you're noticing bleeding ulit after a month of it being gone, better check with your OB just to be safe, para ma-rule out if may irritation or if something else is going on, one of my mum friends had the same situation at kinailangan lang ng quick check-up para ma-ease ang mind niya. Hopefully okay lang siya and just healing normally, but you know how it is, better safe than sorry with postpartum stuff!