BBT/ovulation questions

So I kind of have three questions in one. I appreciate any insight. This is my first month TTC.
Ovulation: some websites say I ovulate today but glow said Monday (I have been tracking on glow since February). Monday I had ovulation pain on the right and a temperature drop. Sunday my CM was EWCM and stretched about 3/4 an inch. My last two periods began on the 1st and in April it began on the 2nd. Glow estimates my period to be on the 30th of this month. But It did last month also when I started on the 1st. 14 days prior to July 1st would be today if I begin my period on the first again. But I swear I had ovulation signs Monday. We ended up BD'ing Monday morning at 2am. Any insights on when I could actually ovulate? I have creamy CM and a light amount today. My cervix are med, med, open. I didn't want to try ovulation tests my first try- my doctor said I wouldn't need to since I'm healthy and young. She said count 14 days after my period. Which would almost match up with glow (one day off).
BBT: Monday my temp dropped 1.10 degrees. Tuesday it rose 1.30 degrees to 98.1, today it dropped to 97.8/97.9- I got two readings as I try a few times. Does your temp have to stay up above the ovulation day temp for the three days after or does it have to keep increasing? 
CM: will checking your cm after BD'ing effect any lingering Sperm. I didn't check it Monday in order to not disturb any potentially lingering Sperm. I'm sure it's fine but I just wanted to know. 
Thank you!