Help, trying to conceive


We are trying to conceive, going on 3 months now. I have had a period yet since I’m exclusively breastfeeding so I’ve been tracking my ovulation daily through amazon test strips for 2 months now. On 10/1 I started taking vitex and for a week it seemed the lines were getting darker and I didn’t test for a day or so being out of town. When I got back my lines have been non existent. Could I have ovulated? Do any of these look positive? I’m getting very discouraged. Thank you for the help.