I wouldn't say it's too soon/too early for them. I started feeling them even before that. I'd be very careful of them. Make sure you're resting, increasing your fluids, and timing them. I ended up in preterm labor several times because even though I had told my doctor about my braxton hicks, and cramping, they pushed it off like nothing, and it wasn't until a bit later that I ended up with preterm labor and the hospital was telling me I was going to deliver premature.