Hello Ladies!!!

So my partner and I are not technically trying to get pregnant but we're also not being careful to avoid it. We had sex 3 or 4 times on my peak ovulation window and I'm currently 2 days away from having my period. I have been super nauseous the last week or so, major heartburn and indigestion, terrible mood swings and horrible acne. But the last day or so I've been also having backpain, and light cramping. I've tested 9DPO and last night at 10 DPO (I know super early) and both tests were negative. Should I just be expecting that this cramping is AF coming or is there still some hope? Thanks for the advice in advance! Baby Dust to everyone!