Could I be pregnant by stoping my birth control pills ?

I got my period on june 29 and started taking yasmin birth control pills on that date took them for about 10 days and stopped on july 8 on purpose I'm trying to conceive. I had unprotected sex on july 9, 10, 12 and I'm suppose to ovulate on day july 17. I started bleeding on  13 till now july 16 is there any possibility I could be pregnant. I bleeding has been light brown and a little bit red but mostly brown. I still have not gotten my period I was suppose to get it on the 29th of this month but since I took birth control pills yasimn  since june 29 to july 8 and then stopped and had unprotected sex. I have been using the BBT  And here are my tempes.

1 through 6 in bbt was my period

7=97.8
8=98.1
9=98.3
10=98.4
11=97.7
12=98.4
13=98.4
14=98.1
15= 98.3
16=98.1
17=97.9
18=98.1
19=97.7
20=98.5
21=97.9
22=97.7
23=98.1
24=97.7
25=97.5
26=97.9
27=97.5
28=97.7
29=97.7
30=97.6
31= 97.7
32= 97.6
33=97.7
34=98.2