Period missed

Trigger warning.

July 27th I started to have a miscarriage. Ive not have a period since. I've been spotting last week. And it started again last night. My period is 23 days late and counting. I've done pregnancy test and they come back negative. I'm symptoms of being pregnant. Can't stand smell of certain things, so drained, having nausea ect ( I didn't find out I was pregnant till I was 4 months as all test was negative all but one) could it be happing again. A don't want to get my hopes up as I've had 3+ miscarriages now.( Tmi: I only see blood when wiping there nothing on pad ) Tbh I'm not sure what to do or think.. has this happened to anyone else.