pregnant?

So, I have been fwb with withdrawal sex with a guy for the last few months. I thought I might have been pregnant in march but did get my period (WAY early!) according to glow, I was supposed to ovulate 4/8, and we had withdrawal sex again on 4/13. I don't think I ovulated on 4/8.

My question is, could I be pg? I am 4 days late on my period and my areola are darkening (boobs are heavier too), I've been tired more lately, couldn't sleep at all last night, peeing more, bloated, having creamy white discharge, off and on nauseous, dizzy, quite thirsty, and irritable. I've mainly been wanting water and Doritos, kale and mushrooms, and banana bread. I have done a test but it was negative.

I usually get low backache pain before my period and haven't had any this month unless I've been doing physical work.