Sex pain?

Hi y'all so, I've had sex a good bit and its always hurt. Lately the pain is just too bad to even attempt to have sex.. I dont want my boyfriend thinking hes doing something wrong it's just not enjoyable for me. It hurts less in some positions (like missionary) and hurts more in others(like doggy.) I know my cervix is extremely tilted and just wonder if that could be it? And if so, why did it not hurt as badly before? Is there anything I can do to make the pain lighter, or even just manage it?

Thanks in advance.