I got pregnant 3 weeks after...I has symptoms the second week- but b/c I misscarried and my babies where not developing right- I never had symptoms the forst time. Everyone and every pregnancy is different. I still wasn't able to get a positive test untill 5 weeks after my miscarriage (my ovulation was delayed a week.)
When I had my miscarriage and got pregnant after it I actually had no symptoms (other than an upset stomach) for six weeks
I doubt it would show any sooner than before about 3-4 days after implantion have you O'd yet? If so how long ago?