Bbt help!?

Suzanne • Proposal 11/2/14* Married 7/11/15* MC 9/6/15* BFP 11/2/15* DUE 7/15/16
This is my first month tracking my bbt, and while my DH and I are crazy about each other, BDing every day for nearly 3 weeks is exhausting without the spontaneity. I'm waiting for my temp to spike so I know I've ovulated and we can take a break from, "if we don't do this now we might miss our chance!" However, if this isn't my spike, I want to keep going until it happens. These were my temps over the last 5 days, during which I got my +opk.
10/20: 97.07F -opk
10/21: 97.23F -opk in am, +opk in pm
10/22: 97.32F +opk, VERY dark 2nd line in pm
10/23: 97.42F +opk in am but fainter, -opk in pm
10/24: 97.80 -opk
The jump doesn't seem extreme to me, but I am temping orally, and if we don't get our rainbow this month I'll switch to vaginally next month which I read is more accurate. Could this be my spike, letting me know that I've just ovulated? Help a girl out! Thanks in advance ladies!