Confused! Temp way up but bleeding?

[hope4alittle]

Hi girls,

We've been ttc for 7 years now... long story.

I've been charting the last 4 months and I'm having a very unusual month, could anyone help shed some light? My temps plummeted down on 8 and 9 dpo to below coverline, shot up 0.5 degrees 10 dpo, plummeted below coverline again on 11 dpo, and back up 0.75 degrees today (12 dpo). My chart looks like it has a huge W in it.

Despite my temp shooting up really high today, I had some scant bleeding after DH and I had sex this morning and I thought it's the start of AF. It was accompanied by some cramping. I'm not due for another 3-4 days but I thought maybe since my temps were so erratic, it was just a weird month hormonally. But the bleeding was hardly anything at all and it stopped, though the cramping has continued off and on.

I confirmed O using temping and CBFM, and also CM.

Does anyone have any idea what could cause these drastic fluctuations, and why AF would start despite a huge temp jump? Thank you so much in advance for any insight, I'm driving myself crazy wondering what is going on!

 

[hope4alittle]

Here's my chart.

 

[CheshireDucky]

Is it possible that the sex caused the bleeding? For some people, if their cervix is low enough and it gets hit while having sex it's enough to cause cramping and bleeding.

 

[hope4alittle]

Yes that is totally possible, it looked like fresh blood, not like old brown stuff (like I typically got if I had spotting before AF). It was a really small amount too, and I haven't seen anything for the rest of the day. Thank you so much for your time!