HELP!!!

how long after sex will my hcg levels shows on a blood test ? i am 6 months post op and me and my boyfriend had a little accident and if i am pregnant i want to make sure my baby is ok and well nurished asap! plz anyone that has any ideas let me know thanks

 Approx 2 weeks from ovulation (about the time you'd have a missed period).  If this happened within the last 24-48hrs you can take PlanB.. it is not an abortion pill.  It won't abort an already impregnated person.. It is more like a heavy dose of birth control that will make your uterus hostile to implant in.

exactly what she said ^^

And if i wantto keep it ?

 Then you'll just have to wait and see.  

Usually 10-14 days after ovulation. If you are and decide to keep it make sure you call your surgeon and OB right away so they can do labs and see you if you are lacking in any vitamins. Good luck!