Late ovulation? Long cycle. Confused...

[InASeaofBoys]

I am TOTALLY confused. My cycle is typically 31-32 days and very regular. One time last year I had a 45 day cycle but nothing else unusual. I started my last period on Jan 27th. Typical new cycle would've begun around March 1. Had unprotected sex with dh on the 26th- I felt like I was probably ovulating due to cervical mucous, sex drive, low and soft cervix, etc... I have NOT had a period yet (41 days now from last period but of course only 11 days since suspected ovulation) and took a pregnancy test this morning with negative results. I am EXTREMELY bloated (like 6 inches gained in 3 weeks b/t breasts, ribs, waist and abs- can't wear wedding ring), mildly nauseous in the afternoons the last 3 days, and have had some heartburn (super rare for me- maybe 2x per year when I am not pregnant). I am taking B vitamins, fish oil, etc so I don't know why I should be having so much bloating. I don't even know when I should be waiting til for my next pregnancy test or what else could be going on... Thoughts? Suggestions?