Pregnant??

So we’ve been trying for a baby for about 9 months. Everyone said stop trying and it’ll happen. And my period is due in 4 days. My stomach feels so tight and bloated and I’ve cramped for 2-3 weeks so much :( whenever I move my stomach feels so tight like I’ve done a lot of sit ups. My period in May was short and not heavy. I took a test and it was negative but haven’t taken one since. Advice please? Can you be pregnant and have a period? I’m just uncomfortable and I feel so weird. TIA