Need to spice up my sex life!!!!

My hubby and I are trying to convince. It was fun at first having sex all the time with the excitement we can conceive. Now it feels like we are ONLY having sex to convince and it is getting dull since we know the true purpose of why we are trying to have sex every day... I need some advice, help, tips or anything from anyone else who has gone through this rut before. Anything I/we can do to spice it up again to before we felt like we were having forced sex????