TTC #1 AF expected to come the 24 anyone else?

My ovulation window is from the 4 till today and we made love 5 times really good and I had 2 serious orgasms (which I read helps when conceiving highers chances) and I have a lot of weird periods the last 4 months .. We have been trying since November .. Anyone else having very odd systems related but then testing nothing but BFN's?? Weirdest thing is I've ALWAYS had 7 day very heavy period but since November my periods are lasting only 4 days and very lite almost nothing .. SO WEIRD RIGHT!!! helpppppp ladiesssss!!