The age old is it PMS or am I pregnant question?

My husband and I have been TTC for 2+ years now. Ive been tested and gone through the ringer, he just had surgery for an unrelated injury and we are waiting for him to fully recover before he starts testing. We kind of took a break from TTC while he was injured. I am usually a 28 day cycle, but every once and a while Mother Nature will throw me a curve ball and make it 32 or once it was even 34. I am pretty sure I ovulated this month. It was on or around CD 14. We had around that time so yes I know there is a chance, but with taking a break from TTC, I haven't kept notes on BBT or BD'ing. Point is today is CD 34 and while I have had some serious back pains. Like old lady pains and my are really sore. I have been really tired too. Usually my back just cramps with PMS, this was pain and it was really off to one side. My s feel sore but not all the time. Sometimes a pain will shoot through them like when my seat belt moves over them or when I put on a bra and its not unmanageable, just uncomfortable. So what I am asking is for those who had back pains in early pregnancy, what did they feel like? Same question for . I know its time to test, but I am afraid it will be negative and I will be devastated...again. I like not knowing right now because at least, in my mind, there is still a possibility. Make sense?