Super low libido

I had a baby 7 months ago and I’m now on an anxiety med. since having her I’ve not been wanting to have sex, I’m not into it and I definitely don’t feel sexy and I can’t orgasm. Could the medication be causing any issues? I know being super tired doesn’t help. I need advice, my bf thinks I’m not into him when really I’m so tired but wish so bad to be horny and feel something.