Absolutely no sex drive

I am only 6 weeks pregnant and I have absolutely no sex drive. I always want to cuddle but anything else kinda makes me nauseas. Before we found we were pregnant we had sex, it was so painful. It felt like I had no room for him. Almost like he immediately was hitting the back of me but was barely inside. I feel like it's too early to have no sex drive and painful sex. Anyone else experience this stuff this early?