Chances???

Been off BC since October. Ttc but my cycles have varied from 26 days to 34. We used condoms this month as we are moving and didn't think it would be a good idea to get pregnant right now. On one of my fertile days, after he came the condom stayed inside of me. Now my glow chart changed showing a different fertile week then before but I've been having weird pulling sensation in lower abdominal area, bloating and really sensitive nipples. Took a test came back bfn is there still a chance??? Cycle day 29