In need of some advice!

My partner and I had unprotected sex the first week of March. Two weeks later I had a light period but it was lighter than normal and only lasted two days. I started feeling pregnancy symptoms like nausea, fatigue, spotting, and bloating. I waited two weeks and decided to take a test. I took a test and it was negative. I then waited two more weeks and took another test. Also negative. After testing a third time I assumed I’m probably not pregnant. Fast forward to a few weeks later and the symptoms have become more intense. I find it difficult to lay on my stomach when that’s normally how I sleep. I feel nauseous if I don’t eat or wait too long to eat. I feel bloated after each meal. I’ve continued to have light periods barely lasting a day for April and May. I’m also gaining weight around my stomach but no where else. I want to believe the urine test but is it possible that I am pregnant? I just moved to a new area so I’m in between health insurance right now but will have insurance very soon. I just want to know if it’s something that needs to be addressed right away or can it wait a few more weeks? Will a blood test tell me anything different if the urine test says negative?