PMS or Pregnant?

So I can of the pill last month, had a period and tracked ovulation. I had a very close positive which I presumed I just missed the peak surge.

I am 8dpo today if I did ovulate that day. My period would have been due tomorrow if I ovulated on CD14.

I have been very tired, going to bed at 7pm. Had different types of twinges and cramps in my uterus/ovaries and towards my hips.

I had really bad acid reflux and bleeding gums which I don’t normally have.

Today I have woken up, nauseous, headache, lower back pain and period like pain but again, more towards my hips.

Do you think this could be PMS or pregnancy?