I haven't been up for sex recently :(

Paige • 23- UK. Our little pea due November2017 ❤🌈🌞
I don't know what is going on with me ever since last month I have never been horny or in the mood for sex. We have been ttc and last time I had sex was last week. Iv not been up for it or been feeling really tired. Could this be a sign of pregnancy?