This is driving me crazy 😞

Ca

I’m gonna try to sum this up as best as I can 😅 I’m VERY irregular so predicted periods days always fluctuate with me. I can actually miss 1 and it’s pretty normal. Anyways, AF was due April 1st and never showed. My last positive OPK was March 17 (I didn’t take anymore after that because I had gotten several positives over the course of 3 weeks and it was just confusing me) I had so very light and very pale spotting from March 27-31. It was nothing like a period. I had mild cramps on my lower left abdomen/pelvic area during that time. I have took several pregnancy tests over the past few weeks and keep getting blaring negatives. I have tried cheapies, strips, and 2 digitals. I’ve tried first morning and different times through the day because I read some people get better results in the after noon and such. My left nipple felt really weird the other day. I’ve had several headaches but they were very light and never lasted very long. For the last 3 morning when I first wake up I’ve had some nausea. It usually just goes away or subsides ALOT if I roll over or something. I’ve been a little more tired for a few days too. I’ve got some subtle signs but still no positives. My last test was April 5. I’m just at a loss now. Idk if I’m just imagining the symptoms or if it’s something totally unrelated. I didn’t have any of this with my daughter as I didn’t even know I was pregnant because I wasn’t actively trying or anything. I’m just so upset at this point 😞 anyone have anything similar and actually be pregnant?