Positive O test but too sore to BD...

Mama of 4 🤵👱🏼‍♀️💁🏼‍♂️🙋🏼‍♂️
I'm currently CD23 and have got a + O test so need to be BDing but for some reason this time I have a lot of cramping, sore back and breasts. Not sure how I'm going to BD when I'm sore! Has this happened to anyone? If so how did you get passed it? I'm not usually this sore...