Weight Gain Guilt

I will be 12 weeks in a two days and I've gained 10lbs (including my dinner which was super unhealthy and I ate too much; have only gained 7lbs according to my mornings weight) and I just feel like I've gained way too much already. I was average size before pregnancy but I've had a history with eating disorders for a long time. It's getting hard to stay positive and accept the fact that I am going to gain weight. I don't want to feel guilty my whole pregnancy for eating anything. I admit I haven't made the best choices in meals these past weeks but the holidays didn't help! I just hope if I make better choices everything will still be okay. Just looking to vent and find support! Thanks!