Pelvic twinges? 13dpo

Tea

Hi ladies, I'm currently 13dpo, period due today (it's 12:30am so not till later today). I've had faint positives the last few days but today I've had about a minute just before of sharp pelvic twinges. It was light but when I breathed in deep in my lower abdomen the twinges got intense. Any experienced this and been fine? I had a miscarriage at 10 weeks early this year so I'm a little worried is all. Please let me know! Thanks lovelies.

All tests are separate with fmu.