Couples and pregnancy??

After over a year of being together im 9 weeks pregnant unplanned, but my baby will be loved so very much.

My partner is getting used to the idea hes going to be a dad.

However we just are not getting along great, no sex, always fighting/arguing hes always tired and not in the mood hes always angry,

Anyone elses relationship get like this while being pregnant

I don't really know what to do but iv had enough!!