Am I pregnant

So me and my husband have been trying for about 3 years almost 4 and recent we decided to take a break from trying because it made sex not as fun. One night I was really ready to have sex so we did and it was about 1 days till my ovulation according to my app, then I got my “period” which was just 2 days of very light brown discharge. Now It has been almost 2 weeks for my “period” and I’m staring to feel nauseous, and almost like a heavy feeling in my lower stomach and very light cramps. I’m worried to take a test because I afraid it will be negative, but I have been seeing different things about being pregnant and I’m a believer of signs so idk I just want someone to tell me I’m not crazy and it’s okay to test.