Not sure how to take this

So I guess I’ll start off by saying I was on Birth control but got off of it early March because it was giving me migraines. so when my period was supposed to come last month I only had light spotting for a day and then brown spotting, but then my period came full on maybe a week after it should have, March 25. So this month April 26, I bled when I wiped and thought okay this is the start of my period. So I wiped, put a pad in and went about my day. Then later on I check again and there’s nothing except spotting! Similar to last months situation. Now, today April 28, absolutely nothing. I took a test last night around 2:00 or 3:00 am (Clearblue digital) and it was Negative. When should I test again? Do you think it’s going to be the same as last month? Has this happened to anyone else? I tried making a doc appointment but the closest appointment isn’t for a month! Also forgot to mention that I was sure my period was going to be normal this month. I experienced my normal migraine, sore breasts and cramps. Also when my period comes the bottom of my feet hurt, they were also doing that and have been the past three days.