Some say it would probably be too early to tell and some will say that they felt symptoms within a week of conception. So I guess only time will tell. You'll probably be just starting to show in may. One of my friends started showing at 3 months, the other at almost 5, so it depends. If you're not on the pill and it broke, you may be.
Post to let us know if you eventually start

I will for sure. My period is suppose to be here in a week. (jan. 11th) I plan on taking a first response test this weekend. If i'm not pregnant, i'm not having sex again near my ovulation day even with a condom!

Why dont u wait till after your period?

Then do a test 2weeks alter if its late

I'm so worried about it I don't know if I can wait that long! I will probably take one right before my period and if it's neg. Then I will wait like you said. If it's able to come up positive before my missed period then I really wanna know!