I’m not sure how to feel..

I was with my fiancé for 3 years. We have a beautiful 2 year old son. When our son was 1, we found out we were pregnant again. It lasted for 6 weeks and I suffered a miscarriage. It really took a toll on our relationship. Last month, we had sex before and after my period. Thats it. We decided to call it quits as it just wasn’t working anymore. Well... I’m 3 days late for my period and usually my period is a couple days early every month. So this is super weird for me. I’ve tested and they all come back negative. So I’ve just been toughing it out and waiting. Honestly, I don’t know how to feel about it. I’ve wanted one for so long since my miscarriage but now I’m single :(