A minor difference: if you want to manage your own risk, you should assume could be lying about taking a birth control pill, whereas you can easily verify someone is wearing a condom.
If I was uncertain whether someone was truly on the birth control pill, I would insist upon condoms if I wanted to fully hedge my risk.
I do see the point you're trying make, but it's a complex issue. I could easily make an argument for the opposite case, that it is rape. But I think being able to verify a condom is being worn makes the situation different enough to treat differently from lying about being on the pill.
I would say it's not rape but it's definitely a con and should be illegal.
The difference between being tricked into impregnating and being tricked into being impregnated is that impregnation only affects the bodily autonomy of the person being impregnated. There are other consequences and many of them are shared by both persons but the bodily autonomy part is present on in one.
I had sex with a girl who lied about being on birth control. Was I raped?