Anal (am I overreacting?)

So my husband and I just tried it for the first time he's been working me up to it for months lol. But we went all the way today, I'm not sore or anything. I have other problems like my leg is numb from my butt cheek down and I'm having cramping and numbness in my back along with bad stomach cramps,which I've had for a while but they're strong right now. I'm 36w3d and I'm wondering if this could've caused labor to start or am I overreacting?