Birth control making me moody?

Lilie
I've been on birth control for a good 5 months now. I've always been fine on it, never had any problems or noticed any changes except here recently. I've been getting so moody over everything here lately. It's been going on for about a week and it just doesn't seem like me. Like o knee getting mad at my boyfriend over stupid tiny things and I just start acting really petty. I did also get put on an anxiety medication last month and I take that daily but I don't think that's it. I really don't know what's going on. I was just wondering if any of you guys know if it's my birth control just now starting to do this or what .
Thanks xx